Is CVE-2009-0629 being actively exploited?

CVE-2009-0629 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2009-0629?

CVE-2009-0629 has a CVSS 2.0 base score of 5.4 (MEDIUM).

CVE-2009-0629

MEDIUM · CVSS 5.4EPSS 4.0%EU EUVD

The (1) Airline Product Set (aka ALPS), (2) Serial Tunnel Code (aka STUN), (3) Block Serial Tunnel Code (aka BSTUN), (4) Native Client Interface Architecture (NCIA) support, (5) Data-link switching (aka DLSw), (6) Remote Source-Route Bridging (RSRB), (7) Point to Point Tunneling Protocol (PPTP), (8) X.25 for Record Boundary Preservation (RBP), (9) X.25 over TCP (XOT), and (10) X.25 Routing features in Cisco IOS 12.2 and 12.4 allows remote attackers to cause a denial of service (device reload) via a series of crafted TCP packets.

Key facts

CVSS score: 5.4 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:H/Au:N/C:N/I:N/A:C
EPSS score: 4.0% (91th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2009-0632)
Published: March 27, 2009
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-0632 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

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and 137 more…

References

http://secunia.com/advisories/34438(Third Party Advisory)
http://securitytracker.com/id?1021903(Third Party Advisory, VDB Entry)
http://www.cisco.com/en/US/products/products_security_advisory09186a0080a90469.shtml(Vendor Advisory)
http://www.cisco.com/en/US/products/products_security_advisory09186a0080a904cb.shtml(Vendor Advisory)
http://www.securityfocus.com/bid/34238(Third Party Advisory, VDB Entry)
http://www.vupen.com/english/advisories/2009/0851(Third Party Advisory)
https://exchange.xforce.ibmcloud.com/vulnerabilities/49420(Third Party Advisory, VDB Entry)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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