CVE-2026-20263
CVE CVE-2026-20263EUVD EUVD-2026-53452Published 2026-08-05T16:18:33.000ZLast changed 2026-08-05T17:45:15.000ZCVSS 8.6
What the advisory describes
A vulnerability in the Blocks Extensible Exchange Protocol (BEEP) feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling when parsing a specific BEEP SOAP request. An attacker could exploit this vulnerability by sending a specific BEEP SOAP request to an affected device. A successful exploit could allow the attacker to cause the device to reload unexpectedly, resulting in a DoS condition.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Cisco — Cisco IOS XE Software 16.12.5b; 17.15.1w; 17.2.2; 16.9.1d; 17.9.5e; 16.12.5a; 16.9.5; 17.12.1; 17.9.3; 17.4.2a; 17.1.1s; 16.8.3; 17.15.4b; 17.15.2c; 17.6.8a; 16.6.6; 16.6.7; 16.10.1; 16.9.3; 17.15.1b; 17.12.3; 16.12.3a; 17.9.7b; 17.3.4a; 17.6.1z1; 17.13.1; 16.12.6; 17.9.1y1; 16.11.1b; 17.15.4c; 16.10.1b; 17.3.4b; 17.3.1a; 17.15.4a; 17.9.5c; 17.18.3a; 16.9.2; 17.6.3a; 17.10.1b; 16.10.1s; 16.9.1; 16.10.1a; 17.6.3; 16.12.3; 17.2.1v; 16.9.8b; 17.9.1x1; 16.12.1z1; 16.6.3; 16.8.1c; 16.6.4s; 17.15.1a; 17.15.5; 26.1.1; 17.15.1y; 16.9.3a; 17.6.5; 17.15.5a; 17.10.1a; 16.12.13; 17.12.1z4; 16.12.1z2; 17.2.1r; 17.12.1z; 16.12.1s; 17.15.1x; 17.3.8; 17.3.4; 16.6.10; 16.10.2; 17.6.7; 17.9.2; 17.8.1a; 16.11.2; 17.12.7; 17.9.4; 17.15.2; 16.8.1; 16.12.10; 17.12.6a; 16.11.1c; 17.12.2a; 16.10.1d; 16.9.1a; 17.4.1a; 16.7.3; 16.11.1s; 17.12.1z3; 17.12.4; 17.10.1; 17.3.5a; 17.3.5; 26.2.1ea; 17.12.5c; 16.7.1b; 17.6.1a; 17.5.1; 16.10.1e; 17.15.1; 17.3.1x; 16.12.2; 17.4.1c; 16.12.15; 17.6.5a; 17.12.1z6; 17.7.2; 16.12.1w; 17.9.2a; 17.3.5b; 16.6.4; 16.8.2; 17.4.2; 16.9.4c; 17.3.3a; 17.9.1x; 17.15.3; 17.6.4; 16.12.3s; 17.7.1b; 17.12.6; 17.15.3b; 17.9.1w; 16.12.1x; 17.12.5a; 17.12.2; 17.3.2; 17.3.3; 16.7.2; 16.10.1c; 17.3.7; 26.1.1a; 17.12.1w; 16.12.1y; 17.7.1; 17.17.1; 17.3.4c; 17.6.6; 17.14.1; 17.3.2a; 17.12.5; 17.12.1z2; 16.8.1d; 17.9.8; 16.9.1s; 16.6.8; 17.15.2b; 17.9.5f; 17.9.6; 16.9.2a; 16.11.1; 17.8.1; 17.12.1a; 16.10.1f; 17.6.1z; 16.12.1c; 16.6.7a; 16.9.4; 17.9.6a; 17.12.5b; 17.15.3a; 16.8.1a; 17.18.1a; 17.9.5d; 17.9.1; 17.3.6; 16.12.1t; 17.18.1z; 17.9.3a; 17.5.1a; 17.1.1a; 17.18.1w; 16.12.2t; 16.6.9; 17.9.9; 17.4.1; 16.10.3; 17.16.1a; 16.8.1b; 17.15.4d; 16.12.1a; 17.3.1w; 17.15.4s1; 17.12.1z1; 17.18.1x; 16.12.2a; 17.2.1; 16.9.5f; 16.9.1b; 17.13.1a; 16.12.8; 16.7.4; 16.6.5b; 17.12.4a; 17.1.1; 16.12.9; 17.18.2; 17.16.1; 17.11.1a; 16.6.5a; 17.9.5a; 17.6.8; 17.12.3a; 16.6.5; 17.9.5; 17.12.6b; 17.1.3; 17.12.1x; 16.12.1; 16.9.8; 17.12.5d; 16.6.2; 16.10.1g; 17.18.1; 16.9.8a; 16.9.2s; 17.9.7a; 17.9.5b; 17.1.2; 16.12.5; 16.9.7; 16.9.1c; 17.12.7a; 17.18.1y; 16.9.3h; 17.1.1t; 16.7.1; 17.6.1; 16.12.12; 16.12.4; 17.6.6a; 17.11.1; 16.9.6; 16.12.10a; 16.12.1z; 16.11.1a; 17.12.1y; 16.6.4a; 16.12.2s; 17.6.2; 17.3.8a; 16.12.7; 17.12.4b; 17.15.4; 16.8.1s; 17.18.3; 16.12.14; 17.14.1a; 16.9.3s; 17.15.2a; 17.9.4a; 17.2.1a; 17.9.1a; 17.9.1y; 16.12.11; 17.12.7b; 16.12.6a; 17.6.1x; 17.2.3; 17.3.1z; 17.4.1b; 17.7.1a; 17.12.1z5; 16.7.1a; 16.12.4a; 16.8.1e; 17.3.1; 17.9.7
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Cisco — IOS XE Software
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