CVE-2021-21793 | BDVDB-2026-156521 Detail

Accusoft

Description#

An out-of-bounds write vulnerability exists in the JPG sof_nb_comp header processing functionality of Accusoft ImageGear 19.8 and 19.9. A specially crafted malformed file can lead to memory corruption. An attacker can provide a malicious file to trigger this vulnerability.

Impact#

Per CVSS v3.0: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

CWE-131 Incorrect Calculation of Buffer Size

References#

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1257

Exploit#

No public exploit known

History#

Version 12021-07-08Record published in the CVE List.
Version 22024-08-03Most recent update recorded in the CVE List.

Published

Published: 2021-07-08
Last modified: 2024-08-03

Vendor information

Vendor: Not stated
Product: Accusoft

Score

9.8 Critical

EPSS

1.1%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 66.8.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
Accusoft ImageGear 19.8 , Accusoft ImageGear 19.9
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

Not available

CVSS v3.0

9.8 Critical

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	High

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).