CVE-2026-32942 (GCVE-0-2026-32942)

Vulnerability from cvelistv5 – Published: 2026-03-20 03:43 – Updated: 2026-03-20 18:08
VLAI
Title
PJSIP has ICE session use-after-free race conditions
Summary
PJSIP is a free and open source multimedia communication library written in C. Versions 2.16 and below contain a heap use-after-free vulnerability in the ICE session that occurs when there are race conditions between session destruction and the callbacks. This issue has been fixed in version 2.17.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-20 17:12 UTC
CWE
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7885 records in the last 180 days details
Impacted products
Vendor Product Version CPE status
pjsip pjproject Affected: < 2.17
guessed Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-32942",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-20T17:12:43.277755Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-20T18:08:20.801Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "pjproject",
          "vendor": "pjsip",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.17"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "PJSIP is a free and open source multimedia communication library written in C. Versions 2.16 and below contain a  heap use-after-free vulnerability in the ICE session that occurs when there are race conditions between session destruction and the callbacks. This issue has been fixed in version 2.17."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-416",
              "description": "CWE-416: Use After Free",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-20T03:43:37.112Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/pjsip/pjproject/security/advisories/GHSA-g88q-c2hm-q7p7",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/pjsip/pjproject/security/advisories/GHSA-g88q-c2hm-q7p7"
        },
        {
          "name": "https://github.com/pjsip/pjproject/issues/1451",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pjsip/pjproject/issues/1451"
        },
        {
          "name": "https://github.com/pjsip/pjproject/commit/c9caceddabda7f18337b2a82d25d65f6224b450a",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pjsip/pjproject/commit/c9caceddabda7f18337b2a82d25d65f6224b450a"
        }
      ],
      "source": {
        "advisory": "GHSA-g88q-c2hm-q7p7",
        "discovery": "UNKNOWN"
      },
      "title": "PJSIP has ICE session use-after-free race conditions"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-32942",
    "datePublished": "2026-03-20T03:43:37.112Z",
    "dateReserved": "2026-03-17T00:05:53.283Z",
    "dateUpdated": "2026-03-20T18:08:20.801Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-32942",
      "date": "2026-11-14",
      "epss": "0.00339",
      "percentile": "0.27771"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "product": "pjproject",
                "vendor": "pjsip",
                "versions": [
                  {
                    "status": "affected",
                    "version": "\u003c 2.17"
                  }
                ]
              }
            ],
            "source": "security-advisories@github.com"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:pjsip:pjsip:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "117AFEC4-36E1-424F-B2A3-6EC94FBBDF38",
                    "versionEndExcluding": "2.17",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "PJSIP is a free and open source multimedia communication library written in C. Versions 2.16 and below contain a  heap use-after-free vulnerability in the ICE session that occurs when there are race conditions between session destruction and the callbacks. This issue has been fixed in version 2.17."
          },
          {
            "lang": "es",
            "value": "PJSIP es una biblioteca de comunicaci\u00f3n multimedia de c\u00f3digo abierto y gratuita escrita en C. Las versiones 2.16 e inferiores contienen una vulnerabilidad de uso despu\u00e9s de liberaci\u00f3n en el heap en la sesi\u00f3n ICE que ocurre cuando hay condiciones de carrera entre la destrucci\u00f3n de la sesi\u00f3n y las devoluciones de llamada. Este problema ha sido solucionado en la versi\u00f3n 2.17."
          }
        ],
        "id": "CVE-2026-32942",
        "lastModified": "2026-06-17T10:36:36.373",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 8.1,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 2.2,
              "impactScore": 5.9,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ],
          "cvssMetricV40": [
            {
              "cvssData": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "NONE",
                "attackVector": "NETWORK",
                "availabilityRequirement": "NOT_DEFINED",
                "baseScore": 8.0,
                "baseSeverity": "HIGH",
                "confidentialityRequirement": "NOT_DEFINED",
                "exploitMaturity": "UNREPORTED",
                "integrityRequirement": "NOT_DEFINED",
                "modifiedAttackComplexity": "NOT_DEFINED",
                "modifiedAttackRequirements": "NOT_DEFINED",
                "modifiedAttackVector": "NOT_DEFINED",
                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
                "modifiedUserInteraction": "NOT_DEFINED",
                "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
                "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
                "modifiedVulnIntegrityImpact": "NOT_DEFINED",
                "privilegesRequired": "NONE",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
                "version": "4.0",
                "vulnAvailabilityImpact": "NONE",
                "vulnConfidentialityImpact": "HIGH",
                "vulnIntegrityImpact": "HIGH",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "source": "security-advisories@github.com",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-32942",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "yes"
                  },
                  {
                    "technicalImpact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-20T17:12:43.277755Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-03-20T04:16:49.743",
        "references": [
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Patch"
            ],
            "url": "https://github.com/pjsip/pjproject/commit/c9caceddabda7f18337b2a82d25d65f6224b450a"
          },
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Issue Tracking"
            ],
            "url": "https://github.com/pjsip/pjproject/issues/1451"
          },
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://github.com/pjsip/pjproject/security/advisories/GHSA-g88q-c2hm-q7p7"
          }
        ],
        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-416"
              }
            ],
            "source": "security-advisories@github.com",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2026-06-28T11:50:07+00:00",
      "cve": "CVE-2026-32942",
      "id": "CVE-2026-32942",
      "initial_release_date": "2026-03-20T03:43:37.112000+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "PJSIP: PJSIP: Arbitrary code execution or information disclosure via race condition in ICE session handling",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-32942.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-32942",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-03-20T17:12:43.277755Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-03-20T17:12:47.243Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "product": "pjproject",
              "vendor": "pjsip",
              "versions": [
                {
                  "status": "affected",
                  "version": "\u003c 2.17"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "PJSIP is a free and open source multimedia communication library written in C. Versions 2.16 and below contain a  heap use-after-free vulnerability in the ICE session that occurs when there are race conditions between session destruction and the callbacks. This issue has been fixed in version 2.17."
            }
          ],
          "metrics": [
            {
              "cvssV4_0": {
                "attackComplexity": "LOW",
                "attackRequirements": "NONE",
                "attackVector": "NETWORK",
                "baseScore": 8,
                "baseSeverity": "HIGH",
                "privilegesRequired": "NONE",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "NONE",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U",
                "version": "4.0",
                "vulnAvailabilityImpact": "NONE",
                "vulnConfidentialityImpact": "HIGH",
                "vulnIntegrityImpact": "HIGH"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-416",
                  "description": "CWE-416: Use After Free",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-03-20T03:43:37.112Z",
            "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
            "shortName": "GitHub_M"
          },
          "references": [
            {
              "name": "https://github.com/pjsip/pjproject/security/advisories/GHSA-g88q-c2hm-q7p7",
              "tags": [
                "x_refsource_CONFIRM"
              ],
              "url": "https://github.com/pjsip/pjproject/security/advisories/GHSA-g88q-c2hm-q7p7"
            },
            {
              "name": "https://github.com/pjsip/pjproject/issues/1451",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/pjsip/pjproject/issues/1451"
            },
            {
              "name": "https://github.com/pjsip/pjproject/commit/c9caceddabda7f18337b2a82d25d65f6224b450a",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/pjsip/pjproject/commit/c9caceddabda7f18337b2a82d25d65f6224b450a"
            }
          ],
          "source": {
            "advisory": "GHSA-g88q-c2hm-q7p7",
            "discovery": "UNKNOWN"
          },
          "title": "PJSIP has ICE session use-after-free race conditions"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "assignerShortName": "GitHub_M",
        "cveId": "CVE-2026-32942",
        "datePublished": "2026-03-20T03:43:37.112Z",
        "dateReserved": "2026-03-17T00:05:53.283Z",
        "dateUpdated": "2026-03-20T18:08:20.801Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Events included in the timeline

Loading timeline…


    Loading…

    Loading…

    Loading…

    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.