CVE-2024-20316

A vulnerability in the data model interface (DMI) services of Cisco IOS XE Software could allow an unauthenticated, remote attacker to access resources that should have been protected by a configured IPv4 access control list (ACL). This vulnerability is due to improper handling of error conditions when a successfully authorized device administrator updates an IPv4 ACL using the NETCONF or RESTCONF protocol, and the update would reorder access control entries (ACEs) in the updated ACL. An attacker could exploit this vulnerability by accessing resources that should have been protected across an affected device.

Published: 2024-03-27 Last update: 2025-07-30 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-20316 is rated Low Risk (35.8/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.45%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2024-20316

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.26% 0.45% +0.19%
2 2025-12-28 0.21% 0.26% +0.06%
3 2025-12-27 — 0.21% —

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-20316

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.8 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 1.4 [email protected]
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 1.4 [email protected]

Weakness enumeration for CVE-2024-20316

Affected software / configurations for CVE-2024-20316

Vendor Product Version Raw CPE
cisco ios_xe 16.3.1 cpe:2.3:o:cisco:ios_xe:16.3.1:*:*:*:*:*:*:*
cisco ios_xe 16.3.1a cpe:2.3:o:cisco:ios_xe:16.3.1a:*:*:*:*:*:*:*
cisco ios_xe 16.3.2 cpe:2.3:o:cisco:ios_xe:16.3.2:*:*:*:*:*:*:*
cisco ios_xe 16.3.3 cpe:2.3:o:cisco:ios_xe:16.3.3:*:*:*:*:*:*:*
cisco ios_xe 16.3.4 cpe:2.3:o:cisco:ios_xe:16.3.4:*:*:*:*:*:*:*
cisco ios_xe 16.3.5 cpe:2.3:o:cisco:ios_xe:16.3.5:*:*:*:*:*:*:*
cisco ios_xe 16.3.5b cpe:2.3:o:cisco:ios_xe:16.3.5b:*:*:*:*:*:*:*
cisco ios_xe 16.3.6 cpe:2.3:o:cisco:ios_xe:16.3.6:*:*:*:*:*:*:*
cisco ios_xe 16.3.7 cpe:2.3:o:cisco:ios_xe:16.3.7:*:*:*:*:*:*:*
cisco ios_xe 16.3.8 cpe:2.3:o:cisco:ios_xe:16.3.8:*:*:*:*:*:*:*
cisco ios_xe 16.3.9 cpe:2.3:o:cisco:ios_xe:16.3.9:*:*:*:*:*:*:*
cisco ios_xe 16.3.10 cpe:2.3:o:cisco:ios_xe:16.3.10:*:*:*:*:*:*:*
cisco ios_xe 16.3.11 cpe:2.3:o:cisco:ios_xe:16.3.11:*:*:*:*:*:*:*
cisco ios_xe 16.4.1 cpe:2.3:o:cisco:ios_xe:16.4.1:*:*:*:*:*:*:*
cisco ios_xe 16.4.2 cpe:2.3:o:cisco:ios_xe:16.4.2:*:*:*:*:*:*:*
cisco ios_xe 16.4.3 cpe:2.3:o:cisco:ios_xe:16.4.3:*:*:*:*:*:*:*
cisco ios_xe 16.5.1 cpe:2.3:o:cisco:ios_xe:16.5.1:*:*:*:*:*:*:*
cisco ios_xe 16.5.1a cpe:2.3:o:cisco:ios_xe:16.5.1a:*:*:*:*:*:*:*
cisco ios_xe 16.5.1b cpe:2.3:o:cisco:ios_xe:16.5.1b:*:*:*:*:*:*:*
cisco ios_xe 16.5.2 cpe:2.3:o:cisco:ios_xe:16.5.2:*:*:*:*:*:*:*
cisco ios_xe 16.5.3 cpe:2.3:o:cisco:ios_xe:16.5.3:*:*:*:*:*:*:*
cisco ios_xe 16.6.1 cpe:2.3:o:cisco:ios_xe:16.6.1:*:*:*:*:*:*:*
cisco ios_xe 16.6.2 cpe:2.3:o:cisco:ios_xe:16.6.2:*:*:*:*:*:*:*
cisco ios_xe 16.6.3 cpe:2.3:o:cisco:ios_xe:16.6.3:*:*:*:*:*:*:*
cisco ios_xe 16.6.4 cpe:2.3:o:cisco:ios_xe:16.6.4:*:*:*:*:*:*:*
cisco ios_xe 16.6.4a cpe:2.3:o:cisco:ios_xe:16.6.4a:*:*:*:*:*:*:*
cisco ios_xe 16.6.5 cpe:2.3:o:cisco:ios_xe:16.6.5:*:*:*:*:*:*:*
cisco ios_xe 16.6.5a cpe:2.3:o:cisco:ios_xe:16.6.5a:*:*:*:*:*:*:*
cisco ios_xe 16.6.6 cpe:2.3:o:cisco:ios_xe:16.6.6:*:*:*:*:*:*:*
cisco ios_xe 16.6.7 cpe:2.3:o:cisco:ios_xe:16.6.7:*:*:*:*:*:*:*
cisco ios_xe 16.6.8 cpe:2.3:o:cisco:ios_xe:16.6.8:*:*:*:*:*:*:*
cisco ios_xe 16.6.9 cpe:2.3:o:cisco:ios_xe:16.6.9:*:*:*:*:*:*:*
cisco ios_xe 16.6.10 cpe:2.3:o:cisco:ios_xe:16.6.10:*:*:*:*:*:*:*
cisco ios_xe 16.7.1 cpe:2.3:o:cisco:ios_xe:16.7.1:*:*:*:*:*:*:*
cisco ios_xe 16.7.2 cpe:2.3:o:cisco:ios_xe:16.7.2:*:*:*:*:*:*:*
cisco ios_xe 16.7.3 cpe:2.3:o:cisco:ios_xe:16.7.3:*:*:*:*:*:*:*
cisco ios_xe 16.8.1 cpe:2.3:o:cisco:ios_xe:16.8.1:*:*:*:*:*:*:*
cisco ios_xe 16.8.1a cpe:2.3:o:cisco:ios_xe:16.8.1a:*:*:*:*:*:*:*
cisco ios_xe 16.8.1b cpe:2.3:o:cisco:ios_xe:16.8.1b:*:*:*:*:*:*:*
cisco ios_xe 16.8.1c cpe:2.3:o:cisco:ios_xe:16.8.1c:*:*:*:*:*:*:*
cisco ios_xe 16.8.1s cpe:2.3:o:cisco:ios_xe:16.8.1s:*:*:*:*:*:*:*
cisco ios_xe 16.8.2 cpe:2.3:o:cisco:ios_xe:16.8.2:*:*:*:*:*:*:*
cisco ios_xe 16.8.3 cpe:2.3:o:cisco:ios_xe:16.8.3:*:*:*:*:*:*:*
cisco ios_xe 16.9.1 cpe:2.3:o:cisco:ios_xe:16.9.1:*:*:*:*:*:*:*
cisco ios_xe 16.9.1a cpe:2.3:o:cisco:ios_xe:16.9.1a:*:*:*:*:*:*:*
cisco ios_xe 16.9.1b cpe:2.3:o:cisco:ios_xe:16.9.1b:*:*:*:*:*:*:*
cisco ios_xe 16.9.1s cpe:2.3:o:cisco:ios_xe:16.9.1s:*:*:*:*:*:*:*
cisco ios_xe 16.9.2 cpe:2.3:o:cisco:ios_xe:16.9.2:*:*:*:*:*:*:*
cisco ios_xe 16.9.3 cpe:2.3:o:cisco:ios_xe:16.9.3:*:*:*:*:*:*:*
cisco ios_xe 16.9.3a cpe:2.3:o:cisco:ios_xe:16.9.3a:*:*:*:*:*:*:*
cisco ios_xe 16.9.4 cpe:2.3:o:cisco:ios_xe:16.9.4:*:*:*:*:*:*:*
cisco ios_xe 16.9.5 cpe:2.3:o:cisco:ios_xe:16.9.5:*:*:*:*:*:*:*
cisco ios_xe 16.9.5f cpe:2.3:o:cisco:ios_xe:16.9.5f:*:*:*:*:*:*:*
cisco ios_xe 16.9.6 cpe:2.3:o:cisco:ios_xe:16.9.6:*:*:*:*:*:*:*
cisco ios_xe 16.9.7 cpe:2.3:o:cisco:ios_xe:16.9.7:*:*:*:*:*:*:*
cisco ios_xe 16.9.8 cpe:2.3:o:cisco:ios_xe:16.9.8:*:*:*:*:*:*:*
cisco ios_xe 16.10.1 cpe:2.3:o:cisco:ios_xe:16.10.1:*:*:*:*:*:*:*
cisco ios_xe 16.10.1a cpe:2.3:o:cisco:ios_xe:16.10.1a:*:*:*:*:*:*:*
cisco ios_xe 16.10.1b cpe:2.3:o:cisco:ios_xe:16.10.1b:*:*:*:*:*:*:*
cisco ios_xe 16.10.1e cpe:2.3:o:cisco:ios_xe:16.10.1e:*:*:*:*:*:*:*
cisco ios_xe 16.10.1s cpe:2.3:o:cisco:ios_xe:16.10.1s:*:*:*:*:*:*:*
cisco ios_xe 16.10.2 cpe:2.3:o:cisco:ios_xe:16.10.2:*:*:*:*:*:*:*
cisco ios_xe 16.10.3 cpe:2.3:o:cisco:ios_xe:16.10.3:*:*:*:*:*:*:*
cisco ios_xe 16.11.1 cpe:2.3:o:cisco:ios_xe:16.11.1:*:*:*:*:*:*:*
cisco ios_xe 16.11.1a cpe:2.3:o:cisco:ios_xe:16.11.1a:*:*:*:*:*:*:*
cisco ios_xe 16.11.1b cpe:2.3:o:cisco:ios_xe:16.11.1b:*:*:*:*:*:*:*
cisco ios_xe 16.11.1s cpe:2.3:o:cisco:ios_xe:16.11.1s:*:*:*:*:*:*:*
cisco ios_xe 16.11.2 cpe:2.3:o:cisco:ios_xe:16.11.2:*:*:*:*:*:*:*
cisco ios_xe 16.12.1 cpe:2.3:o:cisco:ios_xe:16.12.1:*:*:*:*:*:*:*
cisco ios_xe 16.12.1a cpe:2.3:o:cisco:ios_xe:16.12.1a:*:*:*:*:*:*:*
cisco ios_xe 16.12.1c cpe:2.3:o:cisco:ios_xe:16.12.1c:*:*:*:*:*:*:*
cisco ios_xe 16.12.1s cpe:2.3:o:cisco:ios_xe:16.12.1s:*:*:*:*:*:*:*
cisco ios_xe 16.12.1t cpe:2.3:o:cisco:ios_xe:16.12.1t:*:*:*:*:*:*:*
cisco ios_xe 16.12.2 cpe:2.3:o:cisco:ios_xe:16.12.2:*:*:*:*:*:*:*
cisco ios_xe 16.12.2a cpe:2.3:o:cisco:ios_xe:16.12.2a:*:*:*:*:*:*:*
cisco ios_xe 16.12.2s cpe:2.3:o:cisco:ios_xe:16.12.2s:*:*:*:*:*:*:*
cisco ios_xe 16.12.3 cpe:2.3:o:cisco:ios_xe:16.12.3:*:*:*:*:*:*:*
cisco ios_xe 16.12.3a cpe:2.3:o:cisco:ios_xe:16.12.3a:*:*:*:*:*:*:*
cisco ios_xe 16.12.3s cpe:2.3:o:cisco:ios_xe:16.12.3s:*:*:*:*:*:*:*
cisco ios_xe 16.12.4 cpe:2.3:o:cisco:ios_xe:16.12.4:*:*:*:*:*:*:*

References for CVE-2024-20316

cvelogic Threat Intelligence