Vulnerability · Published Jul 8, 2021 · Assigned by talos
CVE-2021-21821
Critical 9.8
In plain English
A critical-severity stack buffer overflow in Accusoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.0% (higher than 80% of all known vulnerabilities).
Severity (CVSS 3.0)9.8Critical
Exploit odds (30 days)2.0%top 19.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A stack-based buffer overflow vulnerability exists in the PDF process_fontname functionality of Accusoft ImageGear 19.9. A specially crafted malformed file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.
Affected products (as reported)
Weakness: CWE-121 · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1286 x_refsource_MISC