CVE-2025-43591: Adobe InDesign Desktop · Heap-based Buffer Overflow
Affects Adobe InDesign DesktopSource CVE Database V5
Not known to be exploited · CVSS 7.8 High.
Data as of 26 Oct 2026, 06:26 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 21% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 8 Jul 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Adobe InDesign Desktop | Affected
| Fixed in– |
AI-suggested
1. Immediately restrict the opening of InDesign files from untrusted or unknown sources through user education and organizational policies. 2. Employ application whitelisting and sandboxing techniques to limit the impact of potential exploitation. 3. Monitor and analyze file handling behavior for anomalies indicative of exploitation attempts. 4. Use endpoint detection and response (EDR) tools to detect suspicious activities related to Adobe InDesign processes. 5. Once Adobe releases an official patch, prioritize its deployment across all affected systems. 6. Implement network segmentation to isolate systems running InDesign from critical infrastructure. 7. Regularly back up important design files and verify backup integrity to enable recovery in case of compromise. 8. Encourage users to maintain updated antivirus and antimalware solutions that may detect exploit attempts.
Description
InDesign Desktop versions 19.5.3 and earlier are affected by a Heap-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.