CVE-2006-2274: Linux SCTP (lksctp) before 2.6.17 allows remote attackers to cause a denial of service (infinite recursion and

This month

MEDIUM 5.0WATCHLISTDOWNGRADE

CVE-2006-2274 is a medium-severity flaw (CVSS 5.0) affecting stream control transmission protocol. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Linux SCTP (lksctp) before 2.6.17 allows remote attackers to cause a denial of service (infinite recursion and crash) via a packet that contains two or more DATA fragments, which causes an skb pointer to refer back to itself when the full message is reassembled, leading to infinite recursion in the sctp_skb_pull function.

Why this priority

EPSS top 10%: very likely to be exploited
On your watchlist

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	3.9% (top 10%)
CISA exploited list	No
Published	2006-05-09
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: lksctp

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2006-05-09 20:02 UTCPublished CVE record published
2026-06-16 22:24 UTCUpdated Record last modified

lksctp stream control transmission protocol DOWNGRADE

Affected: 2.6.17

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.6.17

1. Check installed version

apt-cache policy stream-control-transmission-protocol || rpm -q stream-control-transmission-protocol || stream-control-transmission-protocol --version

2. No fixed release: DOWNGRADE to a release before 2.6.17 (Debian / Ubuntu)

apt-cache madison stream-control-transmission-protocol sudo apt install stream-control-transmission-protocol=<VERSION_BEFORE_2.6.17> sudo apt-mark hold stream-control-transmission-protocol

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list stream-control-transmission-protocol sudo dnf downgrade stream-control-transmission-protocol-<VERSION_BEFORE_2.6.17> sudo dnf versionlock add stream-control-transmission-protocol

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2006-2274?

stream control transmission protocol: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2006-2274 being exploited?

CVE-2006-2274 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2006-2274 affect?

CVE-2006-2274 affects stream control transmission protocol. Severity is medium (CVSS 5.0). Linux SCTP (lksctp) before 2.6.17 allows remote attackers to cause a denial of service (infinite recursion and crash) via a packet that contains two or more DATA fragments, which causes an skb pointer to refer back to itself when the full m

How urgent is CVE-2006-2274?

Priority 45/100. EPSS top 10%: very likely to be exploited; On your watchlist

Related CVEs

CVE-2006-2275 HIGH 7.5 UPGRADE MITIGATE Linux SCTP (lksctp) before 2.6.17 allows remote attackers to cause a denial of service (deadlock) via a large
CVE-2006-2272 HIGH 7.8 UPGRADE Linux SCTP (lksctp) before 2.6.17 allows remote attackers to cause a denial of service (kernel panic) via inco

References

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