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TI-2026-56587 Aliases CVE-2026-81993GHSA-jqpx-779v-44c3

Acrobat Reader | Heap-based Buffer Overflow (CWE-122)

Priority LOW 25CWE-122Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

Acrobat Reader is affected by a Heap-based Buffer Overflow vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to disclose sensitive information. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.003 22nd percentileScored 2026-11-07
Fix Fixed Adobe Acrobat (Adobe): 26.002.21901Acrobat Reader (Adobe): 26.002.21901+1 more product

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AdobeAdobe Acrobatup to 26.002.2190026.002.21901Patch availableCNA
AdobeAcrobat Readerup to 26.002.2190026.002.21901Patch availableCNA
AdobeAcrobat 2024up to 24.001.3038324.001.30429Patch availableCNA
  • Adobe Acrobat VendorAdobe Affected up to 26.002.21900 Fixed in 26.002.21901 Patch available CNA
  • Acrobat Reader VendorAdobe Affected up to 26.002.21900 Fixed in 26.002.21901 Patch available CNA
  • Acrobat 2024 VendorAdobe Affected up to 24.001.30383 Fixed in 24.001.30429 Patch available CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:*24.001.20604 to before 24.001.30429VulnerableAdobe
cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:*15.008.20082 to before 26.002.21901VulnerableAdobe
cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*15.008.20082 to before 26.002.21901VulnerableAdobe
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*not specified by NVDRunning onApple
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
  • cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:* Versions 24.001.20604 to before 24.001.30429 Vulnerable ·Adobe
  • cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:* Versions 15.008.20082 to before 26.002.21901 Vulnerable ·Adobe
  • cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:* Versions 15.008.20082 to before 26.002.21901 Vulnerable ·Adobe
  • cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Apple
  • cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft

Remediation

  • Fix · CNA Adobe Acrobat (Adobe) Fixed in 26.002.21901
  • Fix · CNA Acrobat Reader (Adobe) Fixed in 26.002.21901
  • Fix · CNA Acrobat 2024 (Adobe) Fixed in 24.001.30429

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Adobe Acrobat 2024, Acrobat Reader, Adobe Acrobat — helpx.adobe.com/security/products/acrobat/apsb26-141.html

    32 records Highest priority Priority MEDIUM 1 MEDIUM, 31 LOW

    Other records, highest priority first

    • TI-2026-56590 Acrobat Reader | Incorrect Authorization (CWE-863)Priority MEDIUM 40
    • TI-2026-56588 Acrobat Reader | Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') (CWE-1321)Priority LOW 39
    • TI-2026-56586 Acrobat Reader | Heap-based Buffer Overflow (CWE-122)Priority LOW 36
    Show all 32 records → Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-81993
  2. 2026-10-03 Alias added: GHSA-jqpx-779v-44c3

References

Advisory 1

  • TI-2014-00524 Adobe Reader and Acrobat 10.x before 10.1.11 and 11.x before 11.0.08 on Windows allow… KEVCVSS 3.1CRITICAL 9.8
  • TI-2013-02915 Adobe Reader and Acrobat 9.x before 9.5.5, 10.x before 10.1.7, and 11.x before 11.0.03… KEVCVSS 3.1CRITICAL 9.8
  • TI-2013-02389 Integer overflow in Adobe Reader and Acrobat 9.x before 9.5.5, 10.x before 10.1.7, and… KEVCVSS 3.1CRITICAL 9.8
  • TI-2011-02156 Unspecified vulnerability in the U3D component in Adobe Reader and Acrobat 10.1.1 and… KEVCVSS 3.1CRITICAL 9.8
  • TI-2021-09626 Adobe Acrobat Reader use after free vulnerability could lead to arbitrary code execution KEVCVSS 3.1HIGH 8.8
  • TI-2021-04123 Acrobat Reader DC Heap-based Buffer Overflow Vulnerability Could Lead To Arbitrary Code Execution KEVCVSS 3.1HIGH 8.8
See all 1413 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences