High severity · published Jul 8, 2021
CVE-2021-21793
An out-of-bounds write vulnerability exists in the JPG sof_nb_comp header processing functionality of Accusoft ImageGear 19.8 and 19.9
8.8
CVSS
1.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 66% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AC
Accusoft ·
Accusoft ImageGear 19.8 , Accusoft ImageGear 19.9 · source: vendor
IM
Imagegear · Accusoft
19.8; 19.9 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-21793
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-21793
Exploit
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1257
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