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Fencer Vulns
medium 5.5

CVE-2026-81993 json

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

published 2026-09-08 2 mo ago modified 2026-09-10 59 d ago also EUVD-2026-74108

cvss
5.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 22%
public exploits
0
none known

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.

Patch / fix

  • Adobe Adobe Acrobat 26.002.21901
  • Adobe Acrobat Reader 26.002.21901
  • Adobe Acrobat 2024 24.001.30429

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
1 mo ago

Exploit prediction

0.30% chance of exploitation in the next 30 days, higher than 22% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Affected products

  • Adobe Adobe Acrobat
  • Adobe Acrobat Reader
  • Adobe Acrobat 2024

Classification

Weakness
  • CWE-122 Heap-based Buffer Overflow

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.