How severe is CVE-2008-1391?

CVE-2008-1391 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2008-1391 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 19% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-1391?

CVE-2008-1391 primarily affects Freebsd. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-1391?

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-2008-1391 published?

CVE-2008-1391 was published on 2008-03-27 and last updated on 2026-06-16.

CVE-2008-1391

CVE-2008-1391 is a high-severity vulnerability in Freebsd with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 19% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-189.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 19% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-189
Affected product: Freebsd
Published: 2008-03-27
Last modified: 2026-06-16

Description

Multiple integer overflows in libc in NetBSD 4.x, FreeBSD 6.x and 7.x, and probably other BSD and Apple Mac OS platforms allow context-dependent attackers to execute arbitrary code via large values of certain integer fields in the format argument to (1) the strfmon function in lib/libc/stdlib/strfmon.c, related to the GET_NUMBER macro; and (2) the printf function, related to left_prec and right_prec.

Frequently asked questions

What is CVE-2008-1391?: Multiple integer overflows in libc in NetBSD 4.x, FreeBSD 6.x and 7.x, and probably other BSD and Apple Mac OS platforms allow context-dependent attackers to execute arbitrary code via large values of certain integer fields in the format argument to (1) the strfmon function in lib/libc/stdlib/strfmon.c, related to the GET_NUMBER macro; and (2) the printf function, related to left_prec and right_prec.
How severe is CVE-2008-1391?: CVE-2008-1391 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2008-1391 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 19% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-1391?: CVE-2008-1391 primarily affects Freebsd. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2008-1391?: 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-2008-1391 published?: CVE-2008-1391 was published on 2008-03-27 and last updated on 2026-06-16.

References

Affected products (9)

cpe:2.3:o:freebsd:freebsd:6.0:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:6.0:release:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:6.0:stable:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:6.0_p5_release:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:7.0:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:7.0:pre-release:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:7.0_beta4:*:*:*:*:*:*:*
cpe:2.3:o:freebsd:freebsd:7.0_releng:*:*:*:*:*:*:*
cpe:2.3:o:netbsd:netbsd:4.0:*:*:*:*:*:*:*

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