How severe is CVE-2021-3624?

CVE-2021-3624 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-3624 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-3624?

CVE-2021-3624 primarily affects Dcraw Project Dcraw. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-3624?

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-2021-3624 published?

CVE-2021-3624 was published on 2022-04-18 and last updated on 2026-06-17.

CVE-2021-3624

CVE-2021-3624 is a high-severity vulnerability in Dcraw Project Dcraw with a CVSS 3.x base score of 7.8. 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-190.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 9.3
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-190
Affected product: Dcraw Project Dcraw
Published: 2022-04-18
Last modified: 2026-06-17

Description

There is an integer overflow vulnerability in dcraw. When the victim runs dcraw with a maliciously crafted X3F input image, arbitrary code may be executed in the victim's system.

Frequently asked questions

What is CVE-2021-3624?: There is an integer overflow vulnerability in dcraw. When the victim runs dcraw with a maliciously crafted X3F input image, arbitrary code may be executed in the victim's system.
How severe is CVE-2021-3624?: CVE-2021-3624 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-3624 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-3624?: CVE-2021-3624 primarily affects Dcraw Project Dcraw. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-3624?: 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-2021-3624 published?: CVE-2021-3624 was published on 2022-04-18 and last updated on 2026-06-17.

References

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=984761

Affected products (4)

cpe:2.3:a:dcraw_project:dcraw:9.28-2:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

More vulnerabilities in Dcraw Project Dcraw

CVE-2018-19655 — High (CVSS 8.8): A stack-based buffer overflow in the find_green() function of dcraw through 9.28, as used in ufraw-batch and many other…
CVE-2018-19566 — High (CVSS 7.1): A heap buffer over-read in parse_tiff_ifd in dcraw through 9.28 could be used by attackers able to supply malicious…
CVE-2018-19565 — High (CVSS 7.1): A buffer over-read in crop_masked_pixels in dcraw through 9.28 could be used by attackers able to supply malicious…
CVE-2018-19568 — Medium (CVSS 5.5): A floating point exception in kodak_radc_load_raw in dcraw through 9.28 could be used by attackers able to supply…
CVE-2018-19567 — Medium (CVSS 5.5): A floating point exception in parse_tiff_ifd in dcraw through 9.28 could be used by attackers able to supply malicious…
CVE-2015-3885 — Medium (CVSS 4.3): Integer overflow in the ljpeg_start function in dcraw 7.00 and earlier allows remote attackers to cause a denial of…

All CVEs affecting Dcraw Project Dcraw →

Other CWE-190 (Integer Overflow or Wraparound) vulnerabilities

CVE-2026-4689 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability was…
CVE-2026-24814 — Critical (CVSS 10.0): Integer Overflow or Wraparound vulnerability in swoole swoole-src (thirdparty/hiredis modules). This vulnerability is…
CVE-2025-64721 — Critical (CVSS 10.0): Sandboxie is a sandbox-based isolation software for 32-bit and 64-bit Windows NT-based operating systems. In versions…
CVE-2015-5108 — Critical (CVSS 10.0): Integer overflow in Adobe Reader and Acrobat 10.x before 10.1.15 and 11.x before 11.0.12, Acrobat and Acrobat Reader DC…
CVE-2015-5097 — Critical (CVSS 10.0): Integer overflow in Adobe Reader and Acrobat 10.x before 10.1.15 and 11.x before 11.0.12, Acrobat and Acrobat Reader DC…
CVE-2013-2555 — Critical (CVSS 10.0): Integer overflow in Adobe Flash Player before 10.3.183.75 and 11.x before 11.7.700.169 on Windows and Mac OS X, before…

Browse all CWE-190 (Integer Overflow or Wraparound) vulnerabilities →