7.5high
CVE-2001-02881 exploit
Cisco switches and routers running IOS 12.1 and earlier produce predictable TCP Initial Sequence Numbers (ISNs), which allows remote attack…
Published 25 y ago · modified 4 mo ago · JSON
CVSS
7.5
v2.0 · NVD
CISA KEV
No
not known exploited
EPSS
5.4%
percentile 93%
Public exploits
1
Exploit-DB
Summary
Cisco switches and routers running IOS 12.1 and earlier produce predictable TCP Initial Sequence Numbers (ISNs), which allows remote attackers to spoof or hijack TCP connections.
Exploit prediction (EPSS)
5.41% probability of exploitation in the next 30 days, higher than 93% of all scored CVEs.
Exploits and detections
- EDB-19522 Linux Kernel 2.2 - Predictable TCP Initial Sequence Number · remote · 1999-09-27
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Technology feeds
- Cisco IOS (RSS, critical only)
References
- cisco.com /warp/public/707/ios-tcp-isn-random-pub.shtml · vendor-advisory, x_refsource_CISCO, x_transferred
Sources
- CVE List: CVE-2001-0288
- NVD: CVE-2001-0288
vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.