CVE-2021-21947
mediumpriority · track · 35EPSS 0.011 · 65 %ileEUUSEPSS · scored 2026-10-27
Two heap-based buffer overflow vulnerabilities exists in the JPEG-JFIF lossless Huffman image parser functionality of Accusoft ImageGear 19.10. A specially-crafted file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger these vulnerabilities.This heap-based buffer overflow takes place when the `SOF3` precision is greater or equal than 9.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 6.8–9.8
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- http://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1374Patchcnnvd
- https://cxsecurity.com/cveshow/CVE-2021-21947/cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2021-21947cnnvd
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1375cnnvd
- https://www.cybersecurity-help.cz/vdb/SB2022022412cnnvd
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1375enisa_euvd
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1375ExploitThird Party Advisorynvd
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