No exploitation reportedFix available

CVE-2022-42339

Q: Is CVE-2022-42339 actively exploited?

Active exploitation of CVE-2022-42339 has not been confirmed. Its EPSS score was 2.9% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2022-42339?

CVE-2022-42339 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2022-10-14
Fixed in20.005.30407
WeaknessCWE-121 · CWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Adobe Acrobat Reader versions 22.002.20212 (and earlier) and 20.005.30381 (and earlier) are affected by a Stack-based Buffer Overflow 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.

Timeline

dates in UTC

2022-10-1420:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-42339?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-42339?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Adobe acrobatversion to verify

Branch	Affected	Fixed in	Source
20.x	≥ 20.001.30005, < 20.005.30407	20.005.30407	NVD

Adobe acrobat dcversion to verify

Branch	Affected	Fixed in	Source
22.3	≥ 15.008.20082, < 22.003.20258	22.003.20258	NVD

Adobe acrobat readerversion to verify

Branch	Affected	Fixed in	Source
20.x	≥ 20.001.30005, < 20.005.30407	20.005.30407	NVD

1 more product in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Adobe acrobat to 20.005.30407

Advisories and patches

helpx.adobe.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2025-04-23
OpenCVESSVC decisionnone—
CNACVSS 3.17.8read 2026-10-23
CNAweakness (CWE)CWE-121read 2026-10-23
NVDweakness (CWE)CWE-787read 2026-10-23
FIRST EPSSEPSS score2.9 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: 2022-10-14
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2022-42339?

Is CVE-2022-42339 actively exploited?

Active exploitation of CVE-2022-42339 has not been confirmed. Its EPSS score was 2.9% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-42339?

CVE-2022-42339 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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