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CVE-2007-2782
Packeteer PacketShaper uses fixed increments in TCP initial sequence number (ISN) values, which allows remote attackers to predict the ISN…
- 7.5HighCVSS base score
- 1.6%Exploitation in 30 daysEPSS · top 24% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Packeteer PacketShaper uses fixed increments in TCP initial sequence number (ISN) values, which allows remote attackers to predict the ISN value, and perform session hijacking or disruption.
Timeline
ID reserved
By mitre
Published
- 17 years later
· 17 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 1.6% · top 24% of all CVEs (9 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
n/a
- affected n/a
References
6
- 2726 (opens in a new tab)third-party-advisoryx_refsource_SREASONx_transferred
- ADV-2007-1891 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 25344 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 24048 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 20070518 Predictable TCP ISN in Packeteer PacketShaper (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 36226 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2007-2774 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2007-2782)Record last updated .