CVE-2021-21949

An improper array index validation vulnerability exists in the JPEG-JFIF Scan header parser functionality of Accusoft ImageGear 19.10. A specially-crafted file can lead to an out-of-bounds write and potential code exectuion. An attacker can provide a malicious file to trigger this vulnerability.

CVSS v3.1

8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v3.0

9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

6.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P

EPSS

1.08% chance of exploitation in the next 30 days, 63th percentile

Published

2022-04-14

Updated

2025-04-15

Proof-of-concept exploits (1)

• https://talosintelligence.com/vulnerability_reports/TALOS-2021-1377

References

• CVE Record
• NVD entry

Related

• CVE-2021-21948
• CVE-2021-21950
• CVE-2021-21947
• CVE-2021-21951
• CVE-2021-21946
• CVE-2021-21952