How severe is CVE-2023-30774?

CVE-2023-30774 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-2023-30774 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-30774?

CVE-2023-30774 primarily affects Libtiff. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-30774?

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

When was CVE-2023-30774 published?

CVE-2023-30774 was published on 2023-05-19 and last updated on 2026-06-17.

CVE-2023-30774

CVE-2023-30774 is a medium-severity vulnerability in Libtiff 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-787.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Libtiff
Published: 2023-05-19
Last modified: 2026-06-17

Description

A vulnerability was found in the libtiff library. This flaw causes a heap buffer overflow issue via the TIFFTAG_INKNAMES and TIFFTAG_NUMBEROFINKS values.

Frequently asked questions

What is CVE-2023-30774?: A vulnerability was found in the libtiff library. This flaw causes a heap buffer overflow issue via the TIFFTAG_INKNAMES and TIFFTAG_NUMBEROFINKS values.
How severe is CVE-2023-30774?: CVE-2023-30774 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-2023-30774 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-30774?: CVE-2023-30774 primarily affects Libtiff. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-30774?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-30774 published?: CVE-2023-30774 was published on 2023-05-19 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:libtiff:libtiff:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*

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