CVE-2011-1138

CVE-2011-1138 is a medium-severity vulnerability in Wireshark with a CVSS 2.0 base score of 4.3. 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-189.

Key facts

• Severity: Medium (CVSS 2.0 base score 4.3)
• EPSS exploit prediction: 3% (87th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-189
• Affected product: Wireshark
• Published: 2011-03-03
• Last modified: 2026-06-16

Description

Off-by-one error in the dissect_6lowpan_iphc function in packet-6lowpan.c in Wireshark 1.4.0 through 1.4.3 on 32-bit platforms allows remote attackers to cause a denial of service (application crash) via a malformed 6LoWPAN IPv6 packet.

Frequently asked questions

What is CVE-2011-1138?

Off-by-one error in the dissect_6lowpan_iphc function in packet-6lowpan.c in Wireshark 1.4.0 through 1.4.3 on 32-bit platforms allows remote attackers to cause a denial of service (application crash) via a malformed 6LoWPAN IPv6 packet.

How severe is CVE-2011-1138?

CVE-2011-1138 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2011-1138 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-1138?

CVE-2011-1138 primarily affects Wireshark. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-1138?

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

When was CVE-2011-1138 published?

CVE-2011-1138 was published on 2011-03-03 and last updated on 2026-06-16.

References

• http://anonsvn.wireshark.org/viewvc?view=rev&revision=36036
• http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055364.html
• http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055650.html
• http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055664.html
• http://secunia.com/advisories/43759
• http://secunia.com/advisories/44169
• http://www.kb.cert.org/vuls/id/215900
• http://www.securityfocus.com/bid/46636
• http://www.securitytracker.com/id?1025148
• http://www.vupen.com/english/advisories/2011/0626
• http://www.wireshark.org/docs/relnotes/wireshark-1.4.4.html
• http://www.wireshark.org/security/wnpa-sec-2011-04.html
• https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=5722
• https://exchange.xforce.ibmcloud.com/vulnerabilities/65783
• https://hermes.opensuse.org/messages/8086844
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16299

Affected products (4)

• cpe:2.3:a:wireshark:wireshark:1.4.0:*:*:*:*:*:*:*
• cpe:2.3:a:wireshark:wireshark:1.4.1:*:*:*:*:*:*:*
• cpe:2.3:a:wireshark:wireshark:1.4.2:*:*:*:*:*:*:*
• cpe:2.3:a:wireshark:wireshark:1.4.3:*:*:*:*:*:*:*

More vulnerabilities in Wireshark

• CVE-2011-0444 — Critical (CVSS 10.0): Buffer overflow in the MAC-LTE dissector (epan/dissectors/packet-mac-lte.c) in Wireshark 1.2.0 through 1.2.13 and 1.4.0…
• CVE-2010-2995 — Critical (CVSS 10.0): The SigComp Universal Decompressor Virtual Machine (UDVM) in Wireshark 0.10.8 through 1.0.14 and 1.2.0 through 1.2.9…
• CVE-2010-2994 — Critical (CVSS 10.0): Stack-based buffer overflow in the ASN.1 BER dissector in Wireshark 0.10.13 through 1.0.14 and 1.2.0 through 1.2.9 has…
• CVE-2009-1266 — Critical (CVSS 10.0): Unspecified vulnerability in Wireshark before 1.0.7 has unknown impact and attack vectors.
• CVE-2009-1210 — Critical (CVSS 10.0): Format string vulnerability in the PROFINET/DCP (PN-DCP) dissector in Wireshark 1.0.6 and earlier allows remote…
• CVE-2008-3146 — Critical (CVSS 10.0): Multiple buffer overflows in packet_ncp2222.inc in Wireshark (formerly Ethereal) 0.9.7 through 1.0.2 allow attackers to…

All CVEs affecting Wireshark →

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