CVE-2010-0296

CVE-2010-0296 is a high-severity vulnerability in Gnu Glibc with a CVSS 2.0 base score of 7.2. 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-20.

Key facts

• Severity: High (CVSS 2.0 base score 7.2)
• EPSS exploit prediction: 1% (44th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-20
• Affected product: Gnu Glibc
• Published: 2010-06-01
• Last modified: 2026-06-16

Description

The encode_name macro in misc/mntent_r.c in the GNU C Library (aka glibc or libc6) 2.11.1 and earlier, as used by ncpmount and mount.cifs, does not properly handle newline characters in mountpoint names, which allows local users to cause a denial of service (mtab corruption), or possibly modify mount options and gain privileges, via a crafted mount request.

Frequently asked questions

What is CVE-2010-0296?

The encode_name macro in misc/mntent_r.c in the GNU C Library (aka glibc or libc6) 2.11.1 and earlier, as used by ncpmount and mount.cifs, does not properly handle newline characters in mountpoint names, which allows local users to cause a denial of service (mtab corruption), or possibly modify mount options and gain privileges, via a crafted mount request.

How severe is CVE-2010-0296?

CVE-2010-0296 has a CVSS 2.0 base score of 7.2, rated high severity.

Is CVE-2010-0296 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-0296?

CVE-2010-0296 primarily affects Gnu Glibc. In total, 39 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-0296?

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-2010-0296 published?

CVE-2010-0296 was published on 2010-06-01 and last updated on 2026-06-16.

References

• http://frugalware.org/security/662
• http://packetstormsecurity.com/files/153278/WAGO-852-Industrial-Managed-Switch-Series-Code-Execution-Hardcoded-Credentials.html
• http://seclists.org/fulldisclosure/2019/Jun/18
• http://secunia.com/advisories/39900
• http://secunia.com/advisories/43830
• http://secunia.com/advisories/46397
• http://security.gentoo.org/glsa/glsa-201011-01.xml
• http://securitytracker.com/id?1024043
• http://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=ab00f4eac8f4932211259ff87be83144f5211540
• http://www.debian.org/security/2010/dsa-2058
• http://www.mandriva.com/security/advisories?name=MDVSA-2010:111
• http://www.mandriva.com/security/advisories?name=MDVSA-2010:112
• http://www.redhat.com/support/errata/RHSA-2011-0412.html
• http://www.securityfocus.com/archive/1/520102/100/0/threaded
• http://www.ubuntu.com/usn/USN-944-1
• http://www.vmware.com/security/advisories/VMSA-2011-0012.html
• http://www.vupen.com/english/advisories/2010/1246
• http://www.vupen.com/english/advisories/2011/0863
• https://bugzilla.redhat.com/show_bug.cgi?id=559579
• https://exchange.xforce.ibmcloud.com/vulnerabilities/59240
• https://lists.opensuse.org/opensuse-security-announce/2010-10/msg00007.html
• https://seclists.org/bugtraq/2019/Jun/14

Affected products (39)

• cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.0:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.0.4:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.0.5:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.0.6:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.1:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.1.1.6:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.1.2:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.1.3:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.1.9:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.2:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.2.2:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.2.3:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.2.4:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.2.5:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.3:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.3.1:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.3.2:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.3.3:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.3.4:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.3.5:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.3.6:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.3.10:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.4:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.5:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.5.1:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.6:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.6.1:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.7:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.8:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.9:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.10:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.10.1:*:*:*:*:*:*:*
• cpe:2.3:a:gnu:glibc:2.11:*:*:*:*:*:*:*

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