How severe is CVE-2004-1773?

CVE-2004-1773 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2004-1773 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2004-1773?

CVE-2004-1773 primarily affects Gnu Sharutils. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2004-1773?

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-2004-1773 published?

CVE-2004-1773 was published on 2004-12-31 and last updated on 2026-06-16.

CVE-2004-1773

CVE-2004-1773 is a high-severity vulnerability in Gnu Sharutils with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Gnu Sharutils
Published: 2004-12-31
Last modified: 2026-06-16

Description

Multiple buffer overflows in sharutils 4.2.1 and earlier may allow attackers to execute arbitrary code via (1) long output from wc to shar, or (2) unknown vectors in unshar.

Frequently asked questions

What is CVE-2004-1773?: Multiple buffer overflows in sharutils 4.2.1 and earlier may allow attackers to execute arbitrary code via (1) long output from wc to shar, or (2) unknown vectors in unshar.
How severe is CVE-2004-1773?: CVE-2004-1773 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2004-1773 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-1773?: CVE-2004-1773 primarily affects Gnu Sharutils. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2004-1773?: 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-2004-1773 published?: CVE-2004-1773 was published on 2004-12-31 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:gnu:sharutils:4.2:*:*:*:*:*:*:*
cpe:2.3:a:gnu:sharutils:4.2.1:*:*:*:*:*:*:*

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CVE-2018-1000097 — High (CVSS 7.8): Sharutils sharutils (unshar command) version 4.15.2 contains a Buffer Overflow vulnerability in Affected component on…
CVE-2002-0178 — High (CVSS 7.2): uudecode, as available in the sharutils package before 4.2.1, does not check whether the filename of the uudecoded file…
CVE-2004-1772 — Medium (CVSS 4.6): Stack-based buffer overflow in shar in GNU sharutils 4.2.1 allows local users to execute arbitrary code via a long -o…
CVE-2005-0990 — Low (CVSS 2.1): unshar (unshar.c) in sharutils 4.2.1 allows local users to overwrite arbitrary files via a symlink attack on the unsh.X…

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