CVE-2023-20191
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2023
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
A vulnerability in the access control list (ACL) processing on MPLS interfaces in the ingress direction of Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass a configured ACL. This vulnerability is due to incomplete support for this feature. An attacker could exploit this vulnerability by attempting to send traffic through an affected device. A successful exploit could allow the attacker to bypass an ACL on the affected device. There are workarounds that address this vulnerability. This advisory is part of the September 2023 release of the Cisco IOS XR Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see Cisco Event Response: September 2023 Semiannual Cisco IOS XR Software Security Advisory Bundled Publication .
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Cisco IOS XR Software
- Vendor
- Cisco
- Product
- Cisco IOS XR Software
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 6.4.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 6.5.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 6.5.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 6.5.3 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 6.6.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 6.6.3 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 6.6.25 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 6.6.4 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.0.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.0.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.1.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.1.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.2.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.2.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.3.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.3.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.3.3 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.3.5 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.4.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.4.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.5.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.5.3 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.5.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.5.4 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.6.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.6.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.7.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.7.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.8.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.8.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.9.1 | affected | Unavailable | Unavailable | Unavailable | None listed |