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Fencer Vulns
medium 5.5

CVE-2023-44340 json

ZDI-CAN-21424: Adobe Acrobat Reader DC PDF File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

published 2023-11-16 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-48694

cvss
5.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.0%
EPSS 2.0% chance of exploitation in 30 days, percentile 81%
public exploits
0
none known

Summary

Adobe Acrobat Reader versions 23.006.20360 (and earlier) and 20.005.30524 (and earlier) are affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Patch / fix

  • adobe acrobat_dc 23.006.20380
  • adobe acrobat_reader_dc 23.006.20380
  • adobe acrobat_reader 20.005.30539

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
23 mo ago

Exploit prediction

2.04% chance of exploitation in the next 30 days, higher than 81% 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 Acrobat Reader

Classification

Weakness

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.