Authenticated device reload via SNMP parsing error
Published Feb 5, 2025 · Updated Feb 5, 2025
Denial of service in the SNMP subsystem of Cisco IOS and IOS XE Software allows remote authenticated users to reload affected devices. The parser improperly handles errors in crafted SNMP requests, causing an unexpected device reload rather than safely rejecting the request. Exploitation requires SNMP to be enabled plus a valid v1 or v2c community string or valid v3 user credentials, and the resulting reboot interrupts device service.
Summary
What happened
Denial of service in the SNMP subsystem of Cisco IOS and IOS XE Software allows remote authenticated users to reload affected devices. The parser improperly handles errors in crafted SNMP requests, causing an unexpected device reload rather than safely rejecting the request. Exploitation requires SNMP to be enabled plus a valid v1 or v2c community string or valid v3 user credentials, and the resulting reboot interrupts device service.
The record
- CVE
- CVE-2025-20174
- Published
- Feb 5, 2025
- Updated
- Feb 5, 2025
- Vendor
- ClamAV
- Product
- Cisco IOS
- Classifications
- CWE-805, T1499.004
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 5, 2025CVE publishedPublication date reported by the CVE source.
- Feb 5, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=15.2(1)SY
- Affected versionversion=15.2(1)SY0a
- Affected versionversion=15.2(1)SY1
- Affected versionversion=15.2(1)SY1a
- Affected versionversion=15.2(1)SY2
- Affected versionversion=15.2(1)SY3
- Affected versionversion=15.2(1)SY4
- Affected versionversion=15.2(1)SY5
- Affected versionversion=15.2(1)SY6
- Affected versionversion=15.2(1)SY7
- Affected versionversion=15.2(1)SY8
- Affected versionversion=15.2(2)SY
- Affected versionversion=15.2(2)SY1
- Affected versionversion=15.2(2)SY2
- Affected versionversion=15.2(2)SY3
- Affected versionversion=15.3(1)SY
- Affected versionversion=15.3(1)SY1
- Affected versionversion=15.3(1)SY2
- Affected versionversion=15.4(1)CG
- Affected versionversion=15.4(1)CG1
- Affected versionversion=15.4(1)S
- Affected versionversion=15.4(1)S1
- Affected versionversion=15.4(1)S2
- Affected versionversion=15.4(1)S3
- Affected versionversion=15.4(1)S4
- Affected versionversion=15.4(1)SY
- Affected versionversion=15.4(1)SY1
- Affected versionversion=15.4(1)SY2
- Affected versionversion=15.4(1)SY3
- Affected versionversion=15.4(1)SY4
- Affected versionversion=15.4(1)T
- Affected versionversion=15.4(1)T1
- Affected versionversion=15.4(1)T2
- Affected versionversion=15.4(1)T3
- Affected versionversion=15.4(1)T4
- Affected versionversion=15.4(2)CG
- Affected versionversion=15.4(2)S
- Affected versionversion=15.4(2)S1
- Affected versionversion=15.4(2)S2
- Affected versionversion=15.4(2)S3
- Affected versionversion=15.4(2)S4
- Affected versionversion=15.4(2)T
- Affected versionversion=15.4(2)T1
- Affected versionversion=15.4(2)T2
- Affected versionversion=15.4(2)T3
- Affected versionversion=15.4(2)T4
- Affected versionversion=15.4(3)S
- Affected versionversion=15.4(3)S1
- Affected versionversion=15.4(3)S10
- Affected versionversion=15.4(3)S2
- Affected versionversion=15.4(3)S3
- Affected versionversion=15.4(3)S4
- Affected versionversion=15.4(3)S5
- Affected versionversion=15.4(3)S6
- Affected versionversion=15.4(3)S6a
- Affected versionversion=15.4(3)S7
- Affected versionversion=15.4(3)S8
- Affected versionversion=15.4(3)S9
- Affected versionversion=15.5(1)S
- Affected versionversion=15.5(1)S1
- Affected versionversion=15.5(1)S2
- Affected versionversion=15.5(1)S3
- Affected versionversion=15.5(1)S4
- Affected versionversion=15.5(1)SY
- Affected versionversion=15.5(1)SY1
- Affected versionversion=15.5(1)SY10
- Affected versionversion=15.5(1)SY11
- Affected versionversion=15.5(1)SY12
- Affected versionversion=15.5(1)SY13
- Affected versionversion=15.5(1)SY14
- Affected versionversion=15.5(1)SY2
- Affected versionversion=15.5(1)SY3
- Affected versionversion=15.5(1)SY4
- Affected versionversion=15.5(1)SY5
- Affected versionversion=15.5(1)SY6
- Affected versionversion=15.5(1)SY7
- Affected versionversion=15.5(1)SY8
- Affected versionversion=15.5(1)SY9
- Affected versionversion=15.5(1)T
- Affected versionversion=15.5(1)T1
- Affected versionversion=15.5(1)T3
- Affected versionversion=15.5(1)T4
- Affected versionversion=15.5(2)S
- Affected versionversion=15.5(2)S1
- Affected versionversion=15.5(2)S2
- Affected versionversion=15.5(2)S3
- Affected versionversion=15.5(2)S4
- Affected versionversion=15.5(2)T
- Affected versionversion=15.5(2)T1
- Affected versionversion=15.5(2)T2
- Affected versionversion=15.5(2)T3
- Affected versionversion=15.5(2)T4
- Affected versionversion=15.5(3)M
- Affected versionversion=15.5(3)M0a
- Affected versionversion=15.5(3)M1
- Affected versionversion=15.5(3)M10
- Affected versionversion=15.5(3)M2
- Affected versionversion=15.5(3)M3
- Affected versionversion=15.5(3)M4
- Affected versionversion=15.5(3)M4a
- Affected versionversion=15.5(3)M5
- Affected versionversion=15.5(3)M6
- Affected versionversion=15.5(3)M6a
- Affected versionversion=15.5(3)M7
- Affected versionversion=15.5(3)M8
- Affected versionversion=15.5(3)M9
- Affected versionversion=15.5(3)S
- Affected versionversion=15.5(3)S0a
- Affected versionversion=15.5(3)S1
- Affected versionversion=15.5(3)S10
- Affected versionversion=15.5(3)S1a
- Affected versionversion=15.5(3)S2
- Affected versionversion=15.5(3)S3
- Affected versionversion=15.5(3)S4
- Affected versionversion=15.5(3)S5
- Affected versionversion=15.5(3)S6
- Affected versionversion=15.5(3)S6a
- Affected versionversion=15.5(3)S6b
- Affected versionversion=15.5(3)S7
- Affected versionversion=15.5(3)S8
- Affected versionversion=15.5(3)S9
- Affected versionversion=15.5(3)S9a
- Affected versionversion=15.5(3)SN
- Affected versionversion=15.6(1)S
- Affected versionversion=15.6(1)S1
- Affected versionversion=15.6(1)S2
- Affected versionversion=15.6(1)S3
- Affected versionversion=15.6(1)S4
- Affected versionversion=15.6(1)T
- Affected versionversion=15.6(1)T0a
- Affected versionversion=15.6(1)T1
- Affected versionversion=15.6(1)T2
- Affected versionversion=15.6(1)T3
- Affected versionversion=15.6(2)S
- Affected versionversion=15.6(2)S1
- Affected versionversion=15.6(2)S2
- Affected versionversion=15.6(2)S3
- Affected versionversion=15.6(2)S4
- Affected versionversion=15.6(2)SN
- Affected versionversion=15.6(2)SP
- Affected versionversion=15.6(2)SP1
- Affected versionversion=15.6(2)SP2
- Affected versionversion=15.6(2)SP3
- Affected versionversion=15.6(2)SP4
- Affected versionversion=15.6(2)SP5
- Affected versionversion=15.6(2)SP6
- Affected versionversion=15.6(2)SP7
- Affected versionversion=15.6(2)SP8
- Affected versionversion=15.6(2)SP9
- Affected versionversion=15.6(2)T
- Affected versionversion=15.6(2)T1
- Affected versionversion=15.6(2)T2
- Affected versionversion=15.6(2)T3
- Affected versionversion=15.6(3)M
- Affected versionversion=15.6(3)M0a
- Affected versionversion=15.6(3)M1
- Affected versionversion=15.6(3)M1b
- Affected versionversion=15.6(3)M2
- Affected versionversion=15.6(3)M2a
- Affected versionversion=15.6(3)M3
- Affected versionversion=15.6(3)M3a
- Affected versionversion=15.6(3)M4
- Affected versionversion=15.6(3)M5
- Affected versionversion=15.6(3)M6
- Affected versionversion=15.6(3)M6a
- Affected versionversion=15.6(3)M6b
- Affected versionversion=15.6(3)M7
- Affected versionversion=15.6(3)M8
- Affected versionversion=15.6(3)M9
- Affected versionversion=15.7(3)M
- Affected versionversion=15.7(3)M0a
- Affected versionversion=15.7(3)M1
- Affected versionversion=15.7(3)M2
- Affected versionversion=15.7(3)M3
- Affected versionversion=15.7(3)M4
- Affected versionversion=15.7(3)M4a
- Affected versionversion=15.7(3)M4b
- Affected versionversion=15.7(3)M5
- Affected versionversion=15.7(3)M6
- Affected versionversion=15.7(3)M7
- Affected versionversion=15.7(3)M8
- Affected versionversion=15.7(3)M9
- Affected versionversion=15.8(3)M
- Affected versionversion=15.8(3)M0a
- Affected versionversion=15.8(3)M0b
- Affected versionversion=15.8(3)M1
- Affected versionversion=15.8(3)M1a
- Affected versionversion=15.8(3)M2
- Affected versionversion=15.8(3)M2a
- Affected versionversion=15.8(3)M3
- Affected versionversion=15.8(3)M3a
- Affected versionversion=15.8(3)M3b
- Affected versionversion=15.8(3)M4
- Affected versionversion=15.8(3)M5
- Affected versionversion=15.8(3)M6
- Affected versionversion=15.8(3)M7
- Affected versionversion=15.8(3)M8
- Affected versionversion=15.8(3)M9
- Affected versionversion=15.9(3)M
- Affected versionversion=15.9(3)M0a
- Affected versionversion=15.9(3)M1
- Affected versionversion=15.9(3)M10
- Affected versionversion=15.9(3)M11
- Affected versionversion=15.9(3)M2
- Affected versionversion=15.9(3)M2a
- Affected versionversion=15.9(3)M3
- Affected versionversion=15.9(3)M3a
- Affected versionversion=15.9(3)M3b
- Affected versionversion=15.9(3)M4
- Affected versionversion=15.9(3)M4a
- Affected versionversion=15.9(3)M5
- Affected versionversion=15.9(3)M6
- Affected versionversion=15.9(3)M6a
- Affected versionversion=15.9(3)M6b
- Affected versionversion=15.9(3)M7
- Affected versionversion=15.9(3)M7a
- Affected versionversion=15.9(3)M8
- Affected versionversion=15.9(3)M8b
- Affected versionversion=15.9(3)M9
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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