CVE-2021-21938 json
A heap-based buffer overflow vulnerability exists in the Palette box parser functionality of Accusoft ImageGear 19.10.
published 2022-04-14 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-9109
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.9%
- EPSS 1.9% chance of exploitation in 30 days, percentile 79%
- public exploits
- 0
- none known
Summary
A heap-based buffer overflow vulnerability exists in the Palette box parser functionality of Accusoft ImageGear 19.10. A specially-crafted file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- total
- Assessed
- 18 mo ago
Exploit prediction
1.91% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- talosintelligence.com https://talosintelligence.com/vulnerability_reports/TALOS-2021-1367 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Affected products
- Accusoft ImageGear
Classification
- Weakness
-
- CWE-193 Off-by-one Error
References
-
talosintelligence.com
/vulnerability_reports/TALOS-2021-1367
exploit, third-party-advisory
-
help.accusoft.com
/ImageGear/v20.0/Windows/DLL/webframe.html
product
Sources
- CVE List CVE-2021-21938
- NVD CVE-2021-21938
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