How severe is CVE-2008-4639?

CVE-2008-4639 has a CVSS 2.0 base score of 4.6, rated medium severity.

Is CVE-2008-4639 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-4639?

CVE-2008-4639 primarily affects Sentex Jhead. In total, 21 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-4639?

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

When was CVE-2008-4639 published?

CVE-2008-4639 was published on 2008-10-21 and last updated on 2026-06-16.

CVE-2008-4639

CVE-2008-4639 is a medium-severity vulnerability in Sentex Jhead with a CVSS 2.0 base score of 4.6. 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-59.

Key facts

Severity: Medium (CVSS 2.0 base score 4.6)
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-59
Affected product: Sentex Jhead
Published: 2008-10-21
Last modified: 2026-06-16

Description

jhead.c in Matthias Wandel jhead 2.84 and earlier allows local users to overwrite arbitrary files via a symlink attack on a temporary file.

Frequently asked questions

What is CVE-2008-4639?: jhead.c in Matthias Wandel jhead 2.84 and earlier allows local users to overwrite arbitrary files via a symlink attack on a temporary file.
How severe is CVE-2008-4639?: CVE-2008-4639 has a CVSS 2.0 base score of 4.6, rated medium severity.
Is CVE-2008-4639 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-4639?: CVE-2008-4639 primarily affects Sentex Jhead. In total, 21 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2008-4639?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2008-4639 published?: CVE-2008-4639 was published on 2008-10-21 and last updated on 2026-06-16.

References

Affected products (21)

cpe:2.3:a:sentex:jhead:*:*:*:*:*:*:*:*
cpe:2.3:a:sentex:jhead:1.2:*:*:*:*:*:*:*
cpe:2.3:a:sentex:jhead:1.3:*:*:*:*:*:*:*
cpe:2.3:a:sentex:jhead:1.4:*:*:*:*:*:*:*
cpe:2.3:a:sentex:jhead:1.5:*:*:*:*:*:*:*
cpe:2.3:a:sentex:jhead:1.6:*:*:*:*:*:*:*
cpe:2.3:a:sentex:jhead:1.7:*:*:*:*:*:*:*
cpe:2.3:a:sentex:jhead:1.8:*:*:*:*:*:*:*
cpe:2.3:a:sentex:jhead:1.9:*:*:*:*:*:*:*
cpe:2.3:a:sentex:jhead:2.0:*:*:*:*:*:*:*
cpe:2.3:a:sentex:jhead:2.1:*:*:*:*:*:*:*
cpe:2.3:a:sentex:jhead:2.2:*:*:*:*:*:*:*
cpe:2.3:a:sentex:jhead:2.3:*:*:*:*:*:*:*
cpe:2.3:a:sentex:jhead:2.4:*:*:*:*:*:*:*
cpe:2.3:a:sentex:jhead:2.4-1:*:*:*:*:*:*:*
cpe:2.3:a:sentex:jhead:2.4-2:*:*:*:*:*:*:*
cpe:2.3:a:sentex:jhead:2.5:*:*:*:*:*:*:*
cpe:2.3:a:sentex:jhead:2.6:*:*:*:*:*:*:*
cpe:2.3:a:sentex:jhead:2.7:*:*:*:*:*:*:*
cpe:2.3:a:sentex:jhead:2.8:*:*:*:*:*:*:*
cpe:2.3:a:sentex:jhead:2.82:*:*:*:*:*:*:*

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CVE-2008-4641 — Critical (CVSS 10.0): The DoCommand function in jhead.c in Matthias Wandel jhead 2.84 and earlier allows attackers to execute arbitrary…
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