How severe is CVE-2011-1777?

CVE-2011-1777 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2011-1777 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-1777?

CVE-2011-1777 primarily affects Freebsd Libarchive. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-1777?

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

When was CVE-2011-1777 published?

CVE-2011-1777 was published on 2012-04-13 and last updated on 2026-06-16.

CVE-2011-1777

CVE-2011-1777 is a medium-severity vulnerability in Freebsd Libarchive with a CVSS 2.0 base score of 6.8. 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-119.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Freebsd Libarchive
Published: 2012-04-13
Last modified: 2026-06-16

Description

Multiple buffer overflows in the (1) heap_add_entry and (2) relocate_dir functions in archive_read_support_format_iso9660.c in libarchive through 2.8.5 allow remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted ISO9660 image.

Frequently asked questions

What is CVE-2011-1777?: Multiple buffer overflows in the (1) heap_add_entry and (2) relocate_dir functions in archive_read_support_format_iso9660.c in libarchive through 2.8.5 allow remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted ISO9660 image.
How severe is CVE-2011-1777?: CVE-2011-1777 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2011-1777 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-1777?: CVE-2011-1777 primarily affects Freebsd Libarchive. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-1777?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-1777 published?: CVE-2011-1777 was published on 2012-04-13 and last updated on 2026-06-16.

References

Affected products (18)

cpe:2.3:a:freebsd:libarchive:*:*:*:*:*:*:*:*
cpe:2.3:a:freebsd:libarchive:2.0:*:*:*:*:*:*:*
cpe:2.3:a:freebsd:libarchive:2.1:*:*:*:*:*:*:*
cpe:2.3:a:freebsd:libarchive:2.2:*:*:*:*:*:*:*
cpe:2.3:a:freebsd:libarchive:2.2.3:*:*:*:*:*:*:*
cpe:2.3:a:freebsd:libarchive:2.3:*:*:*:*:*:*:*
cpe:2.3:a:freebsd:libarchive:2.4:*:*:*:*:*:*:*
cpe:2.3:a:freebsd:libarchive:2.5:*:*:*:*:*:*:*
cpe:2.3:a:freebsd:libarchive:2.6:*:*:*:*:*:*:*
cpe:2.3:a:freebsd:libarchive:2.6.1:*:*:*:*:*:*:*
cpe:2.3:a:freebsd:libarchive:2.6.2:*:*:*:*:*:*:*
cpe:2.3:a:freebsd:libarchive:2.7.0:*:*:*:*:*:*:*
cpe:2.3:a:freebsd:libarchive:2.7.1:*:*:*:*:*:*:*
cpe:2.3:a:freebsd:libarchive:2.8.0:*:*:*:*:*:*:*
cpe:2.3:a:freebsd:libarchive:2.8.1:*:*:*:*:*:*:*
cpe:2.3:a:freebsd:libarchive:2.8.2:*:*:*:*:*:*:*
cpe:2.3:a:freebsd:libarchive:2.8.3:*:*:*:*:*:*:*
cpe:2.3:a:freebsd:libarchive:2.8.4:*:*:*:*:*:*:*

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