CVE-2022-50021 (GCVE-0-2022-50021)

Vulnerability from cvelistv5 – Published: 2025-06-18 11:01 – Updated: 2026-05-11 19:11
VLAI
Title
ext4: block range must be validated before use in ext4_mb_clear_bb()
Summary
In the Linux kernel, the following vulnerability has been resolved: ext4: block range must be validated before use in ext4_mb_clear_bb() Block range to free is validated in ext4_free_blocks() using ext4_inode_block_valid() and then it's passed to ext4_mb_clear_bb(). However in some situations on bigalloc file system the range might be adjusted after the validation in ext4_free_blocks() which can lead to troubles on corrupted file systems such as one found by syzkaller that resulted in the following BUG kernel BUG at fs/ext4/ext4.h:3319! PREEMPT SMP NOPTI CPU: 28 PID: 4243 Comm: repro Kdump: loaded Not tainted 5.19.0-rc6+ #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1.fc35 04/01/2014 RIP: 0010:ext4_free_blocks+0x95e/0xa90 Call Trace: <TASK> ? lock_timer_base+0x61/0x80 ? __es_remove_extent+0x5a/0x760 ? __mod_timer+0x256/0x380 ? ext4_ind_truncate_ensure_credits+0x90/0x220 ext4_clear_blocks+0x107/0x1b0 ext4_free_data+0x15b/0x170 ext4_ind_truncate+0x214/0x2c0 ? _raw_spin_unlock+0x15/0x30 ? ext4_discard_preallocations+0x15a/0x410 ? ext4_journal_check_start+0xe/0x90 ? __ext4_journal_start_sb+0x2f/0x110 ext4_truncate+0x1b5/0x460 ? __ext4_journal_start_sb+0x2f/0x110 ext4_evict_inode+0x2b4/0x6f0 evict+0xd0/0x1d0 ext4_enable_quotas+0x11f/0x1f0 ext4_orphan_cleanup+0x3de/0x430 ? proc_create_seq_private+0x43/0x50 ext4_fill_super+0x295f/0x3ae0 ? snprintf+0x39/0x40 ? sget_fc+0x19c/0x330 ? ext4_reconfigure+0x850/0x850 get_tree_bdev+0x16d/0x260 vfs_get_tree+0x25/0xb0 path_mount+0x431/0xa70 __x64_sys_mount+0xe2/0x120 do_syscall_64+0x5b/0x80 ? do_user_addr_fault+0x1e2/0x670 ? exc_page_fault+0x70/0x170 entry_SYSCALL_64_after_hwframe+0x46/0xb0 RIP: 0033:0x7fdf4e512ace Fix it by making sure that the block range is properly validated before used every time it changes in ext4_free_blocks() or ext4_mb_clear_bb().
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 84130193e0e6568dfdfb823f0e1e19aec80aff6e , < 7550aade978371ac582f6d43b14c4cb89ca54463 (git)
Affected: 84130193e0e6568dfdfb823f0e1e19aec80aff6e , < 560a2744cbbf03cac65a6394f9b0d99aa437c867 (git)
Affected: 84130193e0e6568dfdfb823f0e1e19aec80aff6e , < a2522041d248a8c969cbbc97e1fc2cd8b4de120d (git)
Affected: 84130193e0e6568dfdfb823f0e1e19aec80aff6e , < 1e1c2b86ef86a8477fd9b9a4f48a6bfe235606f6 (git)
guessed Create a notification for this product.
Linux Linux Affected: 3.2
Unaffected: 0 , < 3.2 (semver)
Unaffected: 5.10.175 , ≤ 5.10.* (semver)
Unaffected: 5.15.103 , ≤ 5.15.* (semver)
Unaffected: 5.19.4 , ≤ 5.19.* (semver)
Unaffected: 6.0 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/ext4/mballoc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "7550aade978371ac582f6d43b14c4cb89ca54463",
              "status": "affected",
              "version": "84130193e0e6568dfdfb823f0e1e19aec80aff6e",
              "versionType": "git"
            },
            {
              "lessThan": "560a2744cbbf03cac65a6394f9b0d99aa437c867",
              "status": "affected",
              "version": "84130193e0e6568dfdfb823f0e1e19aec80aff6e",
              "versionType": "git"
            },
            {
              "lessThan": "a2522041d248a8c969cbbc97e1fc2cd8b4de120d",
              "status": "affected",
              "version": "84130193e0e6568dfdfb823f0e1e19aec80aff6e",
              "versionType": "git"
            },
            {
              "lessThan": "1e1c2b86ef86a8477fd9b9a4f48a6bfe235606f6",
              "status": "affected",
              "version": "84130193e0e6568dfdfb823f0e1e19aec80aff6e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/ext4/mballoc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.2"
            },
            {
              "lessThan": "3.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.175",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.103",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.175",
                  "versionStartIncluding": "3.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.103",
                  "versionStartIncluding": "3.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19.4",
                  "versionStartIncluding": "3.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0",
                  "versionStartIncluding": "3.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: block range must be validated before use in ext4_mb_clear_bb()\n\nBlock range to free is validated in ext4_free_blocks() using\next4_inode_block_valid() and then it\u0027s passed to ext4_mb_clear_bb().\nHowever in some situations on bigalloc file system the range might be\nadjusted after the validation in ext4_free_blocks() which can lead to\ntroubles on corrupted file systems such as one found by syzkaller that\nresulted in the following BUG\n\nkernel BUG at fs/ext4/ext4.h:3319!\nPREEMPT SMP NOPTI\nCPU: 28 PID: 4243 Comm: repro Kdump: loaded Not tainted 5.19.0-rc6+ #1\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1.fc35 04/01/2014\nRIP: 0010:ext4_free_blocks+0x95e/0xa90\nCall Trace:\n \u003cTASK\u003e\n ? lock_timer_base+0x61/0x80\n ? __es_remove_extent+0x5a/0x760\n ? __mod_timer+0x256/0x380\n ? ext4_ind_truncate_ensure_credits+0x90/0x220\n ext4_clear_blocks+0x107/0x1b0\n ext4_free_data+0x15b/0x170\n ext4_ind_truncate+0x214/0x2c0\n ? _raw_spin_unlock+0x15/0x30\n ? ext4_discard_preallocations+0x15a/0x410\n ? ext4_journal_check_start+0xe/0x90\n ? __ext4_journal_start_sb+0x2f/0x110\n ext4_truncate+0x1b5/0x460\n ? __ext4_journal_start_sb+0x2f/0x110\n ext4_evict_inode+0x2b4/0x6f0\n evict+0xd0/0x1d0\n ext4_enable_quotas+0x11f/0x1f0\n ext4_orphan_cleanup+0x3de/0x430\n ? proc_create_seq_private+0x43/0x50\n ext4_fill_super+0x295f/0x3ae0\n ? snprintf+0x39/0x40\n ? sget_fc+0x19c/0x330\n ? ext4_reconfigure+0x850/0x850\n get_tree_bdev+0x16d/0x260\n vfs_get_tree+0x25/0xb0\n path_mount+0x431/0xa70\n __x64_sys_mount+0xe2/0x120\n do_syscall_64+0x5b/0x80\n ? do_user_addr_fault+0x1e2/0x670\n ? exc_page_fault+0x70/0x170\n entry_SYSCALL_64_after_hwframe+0x46/0xb0\nRIP: 0033:0x7fdf4e512ace\n\nFix it by making sure that the block range is properly validated before\nused every time it changes in ext4_free_blocks() or ext4_mb_clear_bb()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:11:15.182Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/7550aade978371ac582f6d43b14c4cb89ca54463"
        },
        {
          "url": "https://git.kernel.org/stable/c/560a2744cbbf03cac65a6394f9b0d99aa437c867"
        },
        {
          "url": "https://git.kernel.org/stable/c/a2522041d248a8c969cbbc97e1fc2cd8b4de120d"
        },
        {
          "url": "https://git.kernel.org/stable/c/1e1c2b86ef86a8477fd9b9a4f48a6bfe235606f6"
        }
      ],
      "title": "ext4: block range must be validated before use in ext4_mb_clear_bb()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50021",
    "datePublished": "2025-06-18T11:01:25.045Z",
    "dateReserved": "2025-06-18T10:57:27.393Z",
    "dateUpdated": "2026-05-11T19:11:15.182Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2022-50021",
      "date": "2026-09-28",
      "epss": "0.00199",
      "percentile": "0.08672"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "fs/ext4/mballoc.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "7550aade978371ac582f6d43b14c4cb89ca54463",
                    "status": "affected",
                    "version": "84130193e0e6568dfdfb823f0e1e19aec80aff6e",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "560a2744cbbf03cac65a6394f9b0d99aa437c867",
                    "status": "affected",
                    "version": "84130193e0e6568dfdfb823f0e1e19aec80aff6e",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "a2522041d248a8c969cbbc97e1fc2cd8b4de120d",
                    "status": "affected",
                    "version": "84130193e0e6568dfdfb823f0e1e19aec80aff6e",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "1e1c2b86ef86a8477fd9b9a4f48a6bfe235606f6",
                    "status": "affected",
                    "version": "84130193e0e6568dfdfb823f0e1e19aec80aff6e",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "fs/ext4/mballoc.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "3.2"
                  },
                  {
                    "lessThan": "3.2",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.10.*",
                    "status": "unaffected",
                    "version": "5.10.175",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.15.*",
                    "status": "unaffected",
                    "version": "5.15.103",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.19.*",
                    "status": "unaffected",
                    "version": "5.19.4",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "6.0",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "0087A626-8E12-4ADA-AF5C-85736C0B7E84",
                    "versionEndExcluding": "5.10.175",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "7A57CCEF-C453-48CE-9A6E-71A03C369F61",
                    "versionEndExcluding": "5.15.103",
                    "versionStartIncluding": "5.11",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "0E669300-DA42-4ACD-86D8-68BE5F29FB88",
                    "versionEndExcluding": "5.19.4",
                    "versionStartIncluding": "5.16",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: block range must be validated before use in ext4_mb_clear_bb()\n\nBlock range to free is validated in ext4_free_blocks() using\next4_inode_block_valid() and then it\u0027s passed to ext4_mb_clear_bb().\nHowever in some situations on bigalloc file system the range might be\nadjusted after the validation in ext4_free_blocks() which can lead to\ntroubles on corrupted file systems such as one found by syzkaller that\nresulted in the following BUG\n\nkernel BUG at fs/ext4/ext4.h:3319!\nPREEMPT SMP NOPTI\nCPU: 28 PID: 4243 Comm: repro Kdump: loaded Not tainted 5.19.0-rc6+ #1\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1.fc35 04/01/2014\nRIP: 0010:ext4_free_blocks+0x95e/0xa90\nCall Trace:\n \u003cTASK\u003e\n ? lock_timer_base+0x61/0x80\n ? __es_remove_extent+0x5a/0x760\n ? __mod_timer+0x256/0x380\n ? ext4_ind_truncate_ensure_credits+0x90/0x220\n ext4_clear_blocks+0x107/0x1b0\n ext4_free_data+0x15b/0x170\n ext4_ind_truncate+0x214/0x2c0\n ? _raw_spin_unlock+0x15/0x30\n ? ext4_discard_preallocations+0x15a/0x410\n ? ext4_journal_check_start+0xe/0x90\n ? __ext4_journal_start_sb+0x2f/0x110\n ext4_truncate+0x1b5/0x460\n ? __ext4_journal_start_sb+0x2f/0x110\n ext4_evict_inode+0x2b4/0x6f0\n evict+0xd0/0x1d0\n ext4_enable_quotas+0x11f/0x1f0\n ext4_orphan_cleanup+0x3de/0x430\n ? proc_create_seq_private+0x43/0x50\n ext4_fill_super+0x295f/0x3ae0\n ? snprintf+0x39/0x40\n ? sget_fc+0x19c/0x330\n ? ext4_reconfigure+0x850/0x850\n get_tree_bdev+0x16d/0x260\n vfs_get_tree+0x25/0xb0\n path_mount+0x431/0xa70\n __x64_sys_mount+0xe2/0x120\n do_syscall_64+0x5b/0x80\n ? do_user_addr_fault+0x1e2/0x670\n ? exc_page_fault+0x70/0x170\n entry_SYSCALL_64_after_hwframe+0x46/0xb0\nRIP: 0033:0x7fdf4e512ace\n\nFix it by making sure that the block range is properly validated before\nused every time it changes in ext4_free_blocks() or ext4_mb_clear_bb()."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ext4: el rango de bloques debe validarse antes de su uso en ext4_mb_clear_bb(). El rango de bloques a liberar se valida en ext4_free_blocks() mediante ext4_inode_block_valid() y luego se pasa a ext4_mb_clear_bb(). Sin embargo, en algunas situaciones en el sistema de archivos bigalloc, el rango podr\u00eda ajustarse despu\u00e9s de la validaci\u00f3n en ext4_free_blocks(), lo que puede causar problemas en sistemas de archivos da\u00f1ados, como el detectado por syzkaller, que result\u00f3 en el siguiente error del kernel en fs/ext4/ext4.h:3319. PREEMPT SMP NOPTI CPU: 28 PID: 4243 Comm: repro Kdump: cargado No contaminado 5.19.0-rc6+ #1 Nombre del hardware: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1.fc35 01/04/2014 RIP: 0010:ext4_free_blocks+0x95e/0xa90 Rastreo de llamadas  ? lock_timer_base+0x61/0x80 ? __es_remove_extent+0x5a/0x760 ? __mod_timer+0x256/0x380 ? ext4_ind_truncate_ensure_credits+0x90/0x220 ext4_clear_blocks+0x107/0x1b0 ext4_free_data+0x15b/0x170 ext4_ind_truncate+0x214/0x2c0 ? _raw_spin_unlock+0x15/0x30 ? ext4_discard_preallocations+0x15a/0x410 ? ext4_journal_check_start+0xe/0x90 ? __ext4_journal_start_sb+0x2f/0x110 ext4_truncate+0x1b5/0x460 ? __ext4_journal_start_sb+0x2f/0x110 ext4_evict_inode+0x2b4/0x6f0 evict+0xd0/0x1d0 ext4_enable_quotas+0x11f/0x1f0 ext4_orphan_cleanup+0x3de/0x430 ? proc_create_seq_private+0x43/0x50 ext4_fill_super+0x295f/0x3ae0 ? snprintf+0x39/0x40 ? sget_fc+0x19c/0x330 ? ext4_reconfigure+0x850/0x850 get_tree_bdev+0x16d/0x260 vfs_get_tree+0x25/0xb0 path_mount+0x431/0xa70 __x64_sys_mount+0xe2/0x120 do_syscall_64+0x5b/0x80 ? do_user_addr_fault+0x1e2/0x670 ? exc_page_fault+0x70/0x170 entry_SYSCALL_64_after_hwframe+0x46/0xb0 RIP: 0033:0x7fdf4e512ace Corr\u00edjalo asegur\u00e1ndose de que el rango de bloques est\u00e9 validado correctamente antes de usarse cada vez que cambie en ext4_free_blocks() o ext4_mb_clear_bb()."
          }
        ],
        "id": "CVE-2022-50021",
        "lastModified": "2026-06-17T05:22:34.583",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 5.9,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2025-06-18T11:15:30.280",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/1e1c2b86ef86a8477fd9b9a4f48a6bfe235606f6"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/560a2744cbbf03cac65a6394f9b0d99aa437c867"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/7550aade978371ac582f6d43b14c4cb89ca54463"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/a2522041d248a8c969cbbc97e1fc2cd8b4de120d"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-416"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-29T21:37:43+00:00",
      "cve": "CVE-2022-50021",
      "id": "CVE-2022-50021",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:fixed": "201",
      "product_status:known_affected": "112",
      "product_status:known_not_affected": "76",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ext4: block range must be validated before use in ext4_mb_clear_bb()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-50021.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.