CVE-2024-39420
No exploitation reported by the sources we read.
- Published2024-08-14
- Fixed in24.001.30159 · 20.005.30655
- WeaknessCWE-367
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « 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
Acrobat Reader versions 20.005.30636, 24.002.21005, 24.001.30159, 20.005.30655, 24.002.20965, 24.002.20964, 24.001.30123, 24.003.20054 and earlier are affected by a Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability that could lead to arbitrary code execution. This vulnerability arises when the timing of actions changes the state of a resource between the checking of a condition and the use of the resource, allowing an attacker to manipulate the resource in a harmful way. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Timeline
dates in UTC- 2024-08-1415:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2024-39420?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2024-39420?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD · CISA-ADP| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 24.1 | ≥ 24.001.20604, < 24.001.30159 | 24.001.30159 | NVD |
| 20.x | ≥ 20.001.30005, < 20.005.30655 | 20.005.30655 | NVD |
| 24.1 | ≤ 24.001.30123 | no fix published | CISA-ADP |
| 20.x | ≥ 20.0, ≤ 20.005.30636 | no fix published | CISA-ADP |
| 20.x | ≥ 20.0, ≤ 20.005.30635 | no fix published | CISA-ADP |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 24.2 | ≥ 15.008.20082, < 24.002.21005 | 24.002.21005 | NVD |
| 24.2 | ≤ 24.002.20991 | no fix published | CISA-ADP |
| 24.2 | ≤ 24.002.20964 | no fix published | CISA-ADP |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 20.x | ≥ 20.001.3005, < 20.005.30655 | 20.005.30655 | NVD |
| 20.5 | ≤ 20.005.30636 | no fix published | CISA-ADP |
| 20.5 | ≤ 20.005.30635 | no fix published | CISA-ADP |
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 24.001.30159 · 20.005.30655
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- Published
- 2024-08-14
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2024-39420?
Is CVE-2024-39420 actively exploited?
What is the CVSS score for CVE-2024-39420?
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