How severe is CVE-2020-6624?

CVE-2020-6624 has a CVSS 3.x base score of 7.1, 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 none, and availability high.

Is CVE-2020-6624 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-6624?

CVE-2020-6624 affects Jhead Project Jhead. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-6624?

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-2020-6624 published?

CVE-2020-6624 was published on 2020-01-09 and last updated on 2026-06-17.

CVE-2020-6624

CVE-2020-6624 is a high-severity vulnerability in Jhead Project Jhead with a CVSS 3.x base score of 7.1. 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-125.

Key facts

Severity: High (CVSS 3.x base score 7.1)
CVSS v2: 5.8
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Jhead Project Jhead
Published: 2020-01-09
Last modified: 2026-06-17

Description

jhead through 3.04 has a heap-based buffer over-read in process_DQT in jpgqguess.c.

Frequently asked questions

What is CVE-2020-6624?: jhead through 3.04 has a heap-based buffer over-read in process_DQT in jpgqguess.c.
How severe is CVE-2020-6624?: CVE-2020-6624 has a CVSS 3.x base score of 7.1, 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 none, and availability high.
Is CVE-2020-6624 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-6624?: CVE-2020-6624 affects Jhead Project Jhead. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-6624?: 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-2020-6624 published?: CVE-2020-6624 was published on 2020-01-09 and last updated on 2026-06-17.

References

Affected products (1)

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

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