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Vulnerability record · CVE-2020-19726 · published 22 August 2023

CVE-2020-19726: Gnu binutils uncontrolled resource consumption vulnerability

Gnu · Binutils

An issue was discovered in binutils libbfd.c 2.36 relating to the auxiliary symbol data allows attackers to read or write to system memory or cause a denial of service.

8.8 CVSS 3.1 High EPSS 0.75% · top 46.8% CWE-400 · Uncontrolled resource consumption
8.8CVSS 3.1 base score
0.75%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 4 tagged exploit
17 Jun 2026Last modified by NVD

Description

An issue was discovered in binutils libbfd.c 2.36 relating to the auxiliary symbol data allows attackers to read or write to system memory or cause a denial of service.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://sourceware.org/bugzilla/show_bug.cgi?id=26240 ExploitIssue Tracking
https://sourceware.org/bugzilla/show_bug.cgi?id=26241 ExploitIssue Tracking
https://sourceware.org/bugzilla/show_bug.cgi?id=26240 ExploitIssue Tracking
https://sourceware.org/bugzilla/show_bug.cgi?id=26241 ExploitIssue Tracking

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2018-12699Gnu binutils out-of-bounds write vulnerabilityfinish_stab in stabs.c in GNU Binutils 2.30 allows attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified o…EPSS 4.5%9.8CVE-2017-7614Gnu binutils null pointer dereference vulnerabilityelflink.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.28, has a "member access within null pointer" un…EPSS 3.8%9.8CVE-2014-9939Gnu binutils memory buffer overflow vulnerabilityihex.c in GNU Binutils before 2.26 contains a stack buffer overflow when printing bad bytes in Intel Hex objects.EPSS 2.3%9.1CVE-2017-7226Gnu binutils out-of-bounds read vulnerabilityThe pe_ILF_object_p function in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.28, is vulnerable to a heap-b…EPSS 2.5%9.1CVE-2017-6969Gnu binutils out-of-bounds read vulnerabilityreadelf in GNU Binutils 2.28 is vulnerable to a heap-based buffer over-read while processing corrupt RL78 binaries. The vulnerability can trigger pro…EPSS 3.7%7.8CVE-2026-6846Gnu binutils heap-based buffer overflow vulnerabilityA flaw was found in binutils. A heap-buffer-overflow vulnerability exists when processing a specially crafted XCOFF (Extended Common Object File Form…EPSS 0.20%7.8CVE-2022-44840Gnu binutils out-of-bounds write vulnerabilityHeap buffer overflow vulnerability in binutils readelf before 2.40 via function find_section_in_set in file readelf.c.EPSS 0.49%7.8CVE-2022-45703Gnu binutils out-of-bounds write vulnerabilityHeap buffer overflow vulnerability in binutils readelf before 2.40 via function display_debug_section in file readelf.c.EPSS 0.55%

Source: NIST National Vulnerability Database (record CVE-2020-19726), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.