CVE-2023-40457

Published Nov 10, 2024 CVSS n/a EPSS < 1% KEV · Not listed
Description
The BGP daemon in Extreme Networks ExtremeXOS (aka EXOS) 30.7.1.1 allows an attacker (who is not on a directly connected network) to cause a denial of service (BGP session reset) because of BGP attribute error mishandling (for attribute 21 and 25). NOTE: the vendor disputes this because it is "evaluating support for RFC 7606 as a future feature" and believes that "customers that have chosen to not require or implement RFC 7606 have done so willingly and with knowledge of what is needed to defend against these types of attacks."

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Extremenetworks
Extremenetworks extremeos
Weaknesses CWE-209
CPEs cpe:2.3:o:extremenetworks:extremeos:*:*:*:*:*:*:*:*
Vendors & Products Extremenetworks
Extremenetworks extremeos
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description The BGP daemon in Extreme Networks ExtremeXOS (aka EXOS) 30.7.1.1 allows an attacker (who is not on a directly connected network) to cause a denial of service (BGP session reset) because of BGP attribute error mishandling (for attribute 21 and 25). NOTE: the vendor disputes this because it is "evaluating support for RFC 7606 as a future feature" and believes that "customers that have chosen to not require or implement RFC 7606 have done so willingly and with knowledge of what is needed to defend against these types of attacks."
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Nov 12, 2024, 5:23 PM
Reserved
Aug 14, 2023, 12:00 AM
Status
Deferred
Published
Nov 11, 2024, 12:15 AM
Modified
Jun 17, 2026, 6:17 AM