How severe is CVE-2011-0761?

CVE-2011-0761 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2011-0761 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-0761?

CVE-2011-0761 primarily affects Perl. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-0761?

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

When was CVE-2011-0761 published?

CVE-2011-0761 was published on 2011-05-13 and last updated on 2026-06-16.

CVE-2011-0761

CVE-2011-0761 is a medium-severity vulnerability in Perl with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 9% (95th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Perl
Published: 2011-05-13
Last modified: 2026-06-16

Description

Perl 5.10.x allows context-dependent attackers to cause a denial of service (NULL pointer dereference and application crash) by leveraging an ability to inject arguments into a (1) getpeername, (2) readdir, (3) closedir, (4) getsockname, (5) rewinddir, (6) tell, or (7) telldir function call.

Frequently asked questions

What is CVE-2011-0761?: Perl 5.10.x allows context-dependent attackers to cause a denial of service (NULL pointer dereference and application crash) by leveraging an ability to inject arguments into a (1) getpeername, (2) readdir, (3) closedir, (4) getsockname, (5) rewinddir, (6) tell, or (7) telldir function call.
How severe is CVE-2011-0761?: CVE-2011-0761 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2011-0761 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-0761?: CVE-2011-0761 primarily affects Perl. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-0761?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-0761 published?: CVE-2011-0761 was published on 2011-05-13 and last updated on 2026-06-16.

References

Affected products (6)

cpe:2.3:a:perl:perl:5.10.0:*:*:*:*:*:*:*
cpe:2.3:a:perl:perl:5.10.0:rc1:*:*:*:*:*:*
cpe:2.3:a:perl:perl:5.10.0:rc2:*:*:*:*:*:*
cpe:2.3:a:perl:perl:5.10.1:*:*:*:*:*:*:*
cpe:2.3:a:perl:perl:5.10.1:rc1:*:*:*:*:*:*
cpe:2.3:a:perl:perl:5.10.1:rc2:*:*:*:*:*:*

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