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CVE-2026-12087 is an out-of-bounds heap-read vulnerability in Perl Socket versions before 2.041. The pack_ip_mreq_source() function validates the source argument's length before reading that argument, incorrectly reusing the length of the preceding multiaddr argument. A valid four-byte multiaddr therefore allows an undersized source argument to pass validation. A subsequent fixed-size copy into the four-byte imr_sourceaddr field reads up to three bytes beyond the source buffer and includes adjacent heap memory in the returned packed structure.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
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19 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An out-of-bounds heap-read vulnerability in Perl's Socket module before version 2.041. In Socket.xs, pack_ip_mreq_source() incorrectly validates the source argument using the preceding multiaddr argument's byte length. A source shorter than four bytes can therefore pass validation, causing a fixed-size copy to read up to three bytes beyond its buffer and disclose adjacent heap memory in the returned structure. The advisory assigns a critical CVSS v3 base score of 9.1 and recommends updating Echo's perl library and related packages to version 5.40.1-6+e18 or later.
A network-accessible, low-complexity vulnerability requiring no privileges or user interaction, affecting Huawei EulerOS UVP 2.12.1 and its perl-socket package. It can cause high confidentiality and availability impact; integrity impact is not indicated.
A network-accessible, low-complexity vulnerability requiring no privileges or user interaction that can cause high confidentiality and availability impact in the Huawei EulerOS perl-socket package on EulerOS UVP 2.12.0.
A network-accessible, low-complexity vulnerability requiring no privileges or user interaction, with high confidentiality and availability impact, affecting Perl/perl-libs on Huawei EulerOS UVP 2.12.0.
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.