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CVE-2023-21608 (GCVE-0-2023-21608)

Vulnerability from cvelistv5 – Published: 2023-01-18 00:00 – Updated: 2025-10-21 23:15
VLAI CISA Previdian
Title
Adobe Acrobat Reader DC resetForm Use-After-Free Remote Code Execution Vulnerability
Summary
Adobe Acrobat Reader versions 22.003.20282 (and earlier), 22.003.20281 (and earlier) and 20.005.30418 (and earlier) are affected by a Use After Free vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-04 16:09 UTC
CWE
  • CWE-416 - Use After Free (CWE-416)
Assigner
References
Impacted products
Vendor Product Version CPE status
Adobe Acrobat Reader Affected: unspecified , ≤ 20.005.30418 (custom)
Affected: unspecified , ≤ 22.003.20282 (custom)
Affected: unspecified , ≤ 22.003.20281 (custom)
Affected: unspecified , ≤ None (custom)
guessed Create a notification for this product.
Date Public
2023-01-10 00:00
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: ac1c5f69-f056-43a3-b406-9386e1d19026

Vulnerability ID: CVE-2023-21608

Status: Confirmed

Status Updated: 2023-10-10 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2023-10-10
Asserted: 2023-10-10
Scope
Notes: KEV entry: Adobe Acrobat and Reader Use-After-Free Vulnerability | Affected: Adobe / Acrobat and Reader | Description: Adobe Acrobat and Reader contains a use-after-free vulnerability that allows for code execution in the context of the current user. | Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. | Due date: 2023-10-31 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://helpx.adobe.com/security/products/acrobat/apsb23-01.html; https://nvd.nist.gov/vuln/detail/CVE-2023-21608
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-416
Feed CISA Known Exploited Vulnerabilities Catalog
Product Acrobat and Reader
Due Date 2023-10-31
Date Added 2023-10-10
Vendorproject Adobe
Vulnerabilityname Adobe Acrobat and Reader Use-After-Free Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-02-02 13:24 UTC | Updated: 2026-02-06 07:53 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: bda19d3c-c63d-4779-b0c5-ce53e147f8d2

Vulnerability ID: CVE-2023-21608

Status: Confirmed

Status Updated: 2023-10-10 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2023-10-10
Asserted: 2023-10-10
Scope
Notes: KEVIntel entry: Adobe Acrobat Reader DC resetForm Use-After-Free Remote Code Execution Vulnerability | Affected: Adobe / Acrobat Reader | CVSS: 7.8 (HIGH) | Used in malware: unknown | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title Adobe Acrobat Reader DC resetForm Use-After-Free Remote Code Execution Vulnerability
Vendor Adobe
Product Acrobat Reader
Added Date 2023-10-10T00:00:00.000Z
Cvss Score 7.8
Epss Score None
Cvss Severity HIGH
Epss Percentile None
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False
References
Created: 2026-06-23 11:14 UTC | Updated: 2026-06-23 11:14 UTC
Show details on NVD website
To clipboard 

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                {
                  "cweId": "CWE-416",
                  "description": "Use After Free (CWE-416)",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2023-01-18T00:00:00.000Z",
            "orgId": "078d4453-3bcd-4900-85e6-15281da43538",
            "shortName": "adobe"
          },
          "references": [
            {
              "url": "https://helpx.adobe.com/security/products/acrobat/apsb23-01.html"
            }
          ],
          "source": {
            "discovery": "EXTERNAL"
          },
          "title": "Adobe Acrobat Reader DC resetForm Use-After-Free Remote Code Execution Vulnerability"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "078d4453-3bcd-4900-85e6-15281da43538",
        "assignerShortName": "adobe",
        "cveId": "CVE-2023-21608",
        "datePublished": "2023-01-18T00:00:00.000Z",
        "dateReserved": "2022-12-01T00:00:00.000Z",
        "dateUpdated": "2025-10-21T23:15:28.115Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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.


Detection rules are retrieved from Rulezet.


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.