How severe is CVE-2023-5841?

CVE-2023-5841 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2023-5841 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-5841?

CVE-2023-5841 affects Openexr. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-5841?

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

Does CVE-2023-5841 have an EU (EUVD) identifier?

Yes. CVE-2023-5841 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-58123.

When was CVE-2023-5841 published?

CVE-2023-5841 was published on 2024-02-01 and last updated on 2026-06-17.

CVE-2023-5841

CVE-2023-5841 is a critical-severity vulnerability in Openexr with a CVSS 3.x base score of 9.1. 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: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-58123
Weakness: CWE-787
Affected product: Openexr
Published: 2024-02-01
Last modified: 2026-06-17

Description

Due to a failure in validating the number of scanline samples of a OpenEXR file containing deep scanline data, Academy Software Foundation OpenEX image parsing library version 3.2.1 and prior is susceptible to a heap-based buffer overflow vulnerability. This issue was resolved as of versions v3.2.2 and v3.1.12 of the affected library.

Frequently asked questions

What is CVE-2023-5841?: Due to a failure in validating the number of scanline samples of a OpenEXR file containing deep scanline data, Academy Software Foundation OpenEX image parsing library version 3.2.1 and prior is susceptible to a heap-based buffer overflow vulnerability. This issue was resolved as of versions v3.2.2 and v3.1.12 of the affected library.
How severe is CVE-2023-5841?: CVE-2023-5841 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2023-5841 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-5841?: CVE-2023-5841 affects Openexr. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-5841?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2023-5841 have an EU (EUVD) identifier?: Yes. CVE-2023-5841 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-58123.
When was CVE-2023-5841 published?: CVE-2023-5841 was published on 2024-02-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:*

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