CVE-2020-1751An out-of-bounds write vulnerability was found in glibc before 2.31 when handling signal trampolines on PowerPC.
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It affects Red Hat glibc and 6 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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An out-of-bounds write vulnerability was found in glibc before 2.31 when handling signal trampolines on PowerPC. Specifically, the backtrace function did not properly check the array bounds when storing the frame address, resulting in a denial of service or potential code execution. The highest threat from this vulnerability is to system availability.
- CVSS
- 5.1 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-787
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Modified
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 14, 2026
Affected products
Red Hat glibc red_hat:glibc (from the name) | 2.31 | CNA record |
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.0 before V3.1.5 | CISA ADP |
gnu glibc gnu:glibc | before 2.31 | NVD |
redhat enterprise_linux redhat:enterprise_linux | 8.0 | NVD |
canonical ubuntu_linux canonical:ubuntu_linux | 16.04; 18.04; 19.10 | NVD |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1751x-refsource-confirm, issue-tracking, patch, third-party-advisory
- https://sourceware.org/bugzilla/show_bug.cgi?id=25423x-refsource-misc, issue-tracking, third-party-advisory
- https://security.netapp.com/advisory/ntap-20200430-0002/x-refsource-confirm, third-party-advisory
- https://security.gentoo.org/glsa/202006-04vendor-advisory, x-refsource-gentoo, third-party-advisory
- https://usn.ubuntu.com/4416-1/vendor-advisory, x-refsource-ubuntu, third-party-advisory
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.