How severe is CVE-2023-27781?

CVE-2023-27781 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-2023-27781 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-27781?

CVE-2023-27781 affects Jpegoptim Project Jpegoptim. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-27781?

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-2023-27781 published?

CVE-2023-27781 was published on 2023-03-15 and last updated on 2026-06-17.

CVE-2023-27781

CVE-2023-27781 is a high-severity vulnerability in Jpegoptim Project Jpegoptim 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-787.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (31st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Jpegoptim Project Jpegoptim
Published: 2023-03-15
Last modified: 2026-06-17

Description

jpegoptim v1.5.2 was discovered to contain a heap overflow in the optimize function at jpegoptim.c.

Frequently asked questions

What is CVE-2023-27781?: jpegoptim v1.5.2 was discovered to contain a heap overflow in the optimize function at jpegoptim.c.
How severe is CVE-2023-27781?: CVE-2023-27781 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-2023-27781 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-27781?: CVE-2023-27781 affects Jpegoptim Project Jpegoptim. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-27781?: 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-2023-27781 published?: CVE-2023-27781 was published on 2023-03-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:jpegoptim_project:jpegoptim:1.5.2:*:*:*:*:*:*:*

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