In the GNU C Library (aka glibc or libc6) through 2.28, the getaddrinfo function would successfully parse a string that contained an IPv4…

Description

In the GNU C Library (aka glibc or libc6) through 2.28, the getaddrinfo function would successfully parse a string that contained an IPv4 address followed by whitespace and arbitrary characters, which could lead applications to incorrectly assume that it had parsed a valid string, without the possibility of embedded HTTP headers or other potentially dangerous substrings.

Scores

EPSS (exploitation in 30 days)

0.48% · top 59% of all CVEs (4 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.

Weakness

• n/a
• CWE-20 (opens in a new tab)All about CWE-20 and its CVEs

Affected products

• n/a

  • affected n/a

References (7)

• https://sourceware.org/bugzilla/show_bug.cgi?id=20018 (opens in a new tab)x_refsource_MISCx_transferred
• 106672 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• https://bugzilla.redhat.com/show_bug.cgi?id=1347549 (opens in a new tab)x_refsource_MISCx_transferred
• openSUSE-SU-2019:1250 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• RHSA-2019:2118 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• RHSA-2019:3513 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• https://cert-portal.siemens.com/productcert/html/ssa-398330.html (opens in a new tab)

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2016-10739](https://trackcve.app/badge/CVE-2016-10739.svg)](https://trackcve.app/cve/CVE-2016-10739)

Record last updated 14 Oct 2026, 06:30 UTC.