How severe is CVE-2021-21942?

CVE-2021-21942 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-21942 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-21942?

CVE-2021-21942 affects Accusoft Imagegear. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-21942?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-21942 published?

CVE-2021-21942 was published on 2022-04-14 and last updated on 2026-06-17.

CVE-2021-21942

CVE-2021-21942 is a high-severity vulnerability in Accusoft Imagegear with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Accusoft Imagegear
Published: 2022-04-14
Last modified: 2026-06-17

Description

An out-of-bounds write vulnerability exists in the TIFF YCbCr image parser functionality of Accusoft ImageGear 19.10. A specially-crafted file can lead to remote code execution. An attacker can provide a malicious file to trigger this vulnerability.

Frequently asked questions

What is CVE-2021-21942?: An out-of-bounds write vulnerability exists in the TIFF YCbCr image parser functionality of Accusoft ImageGear 19.10. A specially-crafted file can lead to remote code execution. An attacker can provide a malicious file to trigger this vulnerability.
How severe is CVE-2021-21942?: CVE-2021-21942 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-21942 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-21942?: CVE-2021-21942 affects Accusoft Imagegear. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-21942?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-21942 published?: CVE-2021-21942 was published on 2022-04-14 and last updated on 2026-06-17.

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1371

Affected products (1)

cpe:2.3:a:accusoft:imagegear:19.10:*:*:*:*:*:*:*

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