How severe is CVE-2021-33367?

CVE-2021-33367 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-33367 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-33367?

CVE-2021-33367 affects Freeimage Project Freeimage. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-33367?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-33367 published?

CVE-2021-33367 was published on 2023-02-22 and last updated on 2026-06-17.

CVE-2021-33367

CVE-2021-33367 is a medium-severity vulnerability in Freeimage Project Freeimage with a CVSS 3.x base score of 5.5. 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-125.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Freeimage Project Freeimage
Published: 2023-02-22
Last modified: 2026-06-17

Description

Buffer Overflow vulnerability in Freeimage v3.18.0 allows attacker to cause a denial of service via a crafted JXR file.

Frequently asked questions

What is CVE-2021-33367?: Buffer Overflow vulnerability in Freeimage v3.18.0 allows attacker to cause a denial of service via a crafted JXR file.
How severe is CVE-2021-33367?: CVE-2021-33367 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-33367 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-33367?: CVE-2021-33367 affects Freeimage Project Freeimage. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-33367?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-33367 published?: CVE-2021-33367 was published on 2023-02-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:freeimage_project:freeimage:3.18.0:*:*:*:*:*:*:*

More vulnerabilities in Freeimage Project Freeimage

CVE-2025-70968 — Critical (CVSS 9.8): FreeImage 3.18.0 contains a Use After Free in PluginTARGA.cpp;loadRLE().
CVE-2024-31570 — Critical (CVSS 9.8): libfreeimage in FreeImage 3.4.0 through 3.18.0 has a stack-based buffer overflow in the PluginXPM.cpp Load function via…
CVE-2023-47994 — High (CVSS 8.8): An integer overflow vulnerability in LoadPixelDataRLE4 function in PluginBMP.cpp in Freeimage 3.18.0 allows attackers…
CVE-2023-47992 — High (CVSS 8.8): An integer overflow vulnerability in FreeImageIO.cpp::_MemoryReadProc in FreeImage 3.18.0 allows attackers to obtain…
CVE-2021-40265 — High (CVSS 8.8): A heap overflow bug exists FreeImage before 1.18.0 via ofLoad function in PluginJPEG.cpp.
CVE-2021-40263 — High (CVSS 8.8): A heap overflow vulnerability in FreeImage 1.18.0 via the ofLoad function in PluginTIFF.cpp.

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Other CWE-125 (Out-of-bounds Read) vulnerabilities

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CVE-2021-41556 — Critical (CVSS 10.0): sqclass.cpp in Squirrel through 2.2.5 and 3.x through 3.1 allows an out-of-bounds read (in the core interpreter) that…
CVE-2021-21777 — Critical (CVSS 10.0): An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer…
CVE-2017-14451 — Critical (CVSS 10.0): An exploitable out-of-bounds read vulnerability exists in libevm (Ethereum Virtual Machine) of CPP-Ethereum. A…
CVE-2013-0767 — Critical (CVSS 10.0): The nsSVGPathElement::GetPathLengthScale function in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and…

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