How severe is CVE-2018-6612?

CVE-2018-6612 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-2018-6612 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-6612?

CVE-2018-6612 affects Jhead Project Jhead. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-6612?

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

When was CVE-2018-6612 published?

CVE-2018-6612 was published on 2018-02-04 and last updated on 2026-06-17.

CVE-2018-6612

CVE-2018-6612 is a medium-severity vulnerability in Jhead Project Jhead 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)
CVSS v2: 4.3
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Jhead Project Jhead
Published: 2018-02-04
Last modified: 2026-06-17

Description

An integer underflow bug in the process_EXIF function of the exif.c file of jhead 3.00 raises a heap-based buffer over-read when processing a malicious JPEG file, which may allow a remote attacker to cause a denial-of-service attack or unspecified other impact.

Frequently asked questions

What is CVE-2018-6612?: An integer underflow bug in the process_EXIF function of the exif.c file of jhead 3.00 raises a heap-based buffer over-read when processing a malicious JPEG file, which may allow a remote attacker to cause a denial-of-service attack or unspecified other impact.
How severe is CVE-2018-6612?: CVE-2018-6612 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-2018-6612 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-6612?: CVE-2018-6612 affects Jhead Project Jhead. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-6612?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-6612 published?: CVE-2018-6612 was published on 2018-02-04 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:jhead_project:jhead:3.0:*:*:*:*:*:*:*

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