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NVD / CVE Program· CNA mitre

CVE-2008-4576: sctp in Linux kernel before 2.6.25.18 allows remote attackers to cause a denial of service (OOPS) via an INIT-ACK that states the peer does…

HighCVSS 7.8 · v2.0—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 32/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 3.6% (FIRST EPSS); higher than 89.8% of all records.
  • No special conditions are required; it is repeatable.
  • Fixed version: fai-kernels (Debian:4.0) 1.17+etch.23etch1; linux-2.6 (Debian:4.0) 2.6.18.dfsg.1-23etch1; linux-2.6.24 (Debian:4.0) 2.6.24-6~etchnhalf.7.

Low priority for now. Upgrade to fai-kernels (Debian:4.0) 1.17+etch.23etch1; linux-2.6 (Debian:4.0) 2.6.18.dfsg.1-23etch1; linux-2.6.24 (Debian:4.0) 2.6.24-6~etchnhalf.7 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

sctp in Linux kernel before 2.6.25.18 allows remote attackers to cause a denial of service (OOPS) via an INIT-ACK that states the peer does not support AUTH, which causes the sctp_process_init function to clean up active transports and triggers the OOPS when the T1-Init timer expires.

Published
Oct 15, 2008
Updated
Jun 16, 2026
EPSS
3.6% · 89th percentile

Report tools

JSON

Action score

32

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 3.6%

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  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernelup to 2.6.25.17 inclusive
  • linux linux kernel2.2.27
  • linux linux kernel2.4.36
  • linux linux kernel2.4.36.1
  • linux linux kernel2.4.36.2
  • linux linux kernel2.4.36.3
  • linux linux kernel2.4.36.4
  • linux linux kernel2.4.36.5
+12 more rows
  • linux linux kernel2.4.36.6
  • linux linux kernel2.6
  • linux linux kernel2.6.18
  • linux linux kernel2.6.19.4
  • linux linux kernel2.6.19.5
  • linux linux kernel2.6.19.6
  • linux linux kernel2.6.19.7
  • linux linux kernel2.6.20.16
  • linux linux kernel2.6.20.17
  • linux linux kernel2.6.20.18
  • linux linux kernel2.6.20.19
  • linux linux kernel2.6.20.20

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:4.0fai-kernelsbefore 1.17+etch.23etch11.17+etch.23etch1
Debian:4.0linux-2.6before 2.6.18.dfsg.1-23etch12.6.18.dfsg.1-23etch1
Debian:4.0linux-2.6.24before 2.6.24-6~etchnhalf.72.6.24-6~etchnhalf.7
Debian:4.0user-mode-linuxbefore 2.6.18-1um-2etch.23etch12.6.18-1um-2etch.23etch1
Red Hat:enterprise_linux:5::clientkernelbefore 0:2.6.18-92.1.22.el50:2.6.18-92.1.22.el5
Red Hat:enterprise_linux:5::clientkernel-debugbefore 0:2.6.18-92.1.22.el50:2.6.18-92.1.22.el5
Red Hat:enterprise_linux:5::clientkernel-debug-debuginfobefore 0:2.6.18-92.1.22.el50:2.6.18-92.1.22.el5
Red Hat:enterprise_linux:5::clientkernel-debug-develbefore 0:2.6.18-92.1.22.el50:2.6.18-92.1.22.el5
Red Hat:enterprise_linux:5::clientkernel-debuginfobefore 0:2.6.18-92.1.22.el50:2.6.18-92.1.22.el5
Red Hat:enterprise_linux:5::clientkernel-debuginfo-commonbefore 0:2.6.18-92.1.22.el50:2.6.18-92.1.22.el5
Red Hat:enterprise_linux:5::clientkernel-develbefore 0:2.6.18-92.1.22.el50:2.6.18-92.1.22.el5
Red Hat:enterprise_linux:5::clientkernel-docbefore 0:2.6.18-92.1.22.el50:2.6.18-92.1.22.el5
Red Hat:enterprise_linux:5::clientkernel-headersbefore 0:2.6.18-92.1.22.el50:2.6.18-92.1.22.el5
Red Hat:enterprise_linux:5::clientkernel-PAEbefore 0:2.6.18-92.1.22.el50:2.6.18-92.1.22.el5
Red Hat:enterprise_linux:5::clientkernel-PAE-debuginfobefore 0:2.6.18-92.1.22.el50:2.6.18-92.1.22.el5
Red Hat:enterprise_linux:5::clientkernel-PAE-develbefore 0:2.6.18-92.1.22.el50:2.6.18-92.1.22.el5
Red Hat:enterprise_linux:5::clientkernel-xenbefore 0:2.6.18-92.1.22.el50:2.6.18-92.1.22.el5
Red Hat:enterprise_linux:5::clientkernel-xen-debuginfobefore 0:2.6.18-92.1.22.el50:2.6.18-92.1.22.el5
Red Hat:enterprise_linux:5::clientkernel-xen-develbefore 0:2.6.18-92.1.22.el50:2.6.18-92.1.22.el5
Red Hat:enterprise_linux:5::serverkernel-kdumpbefore 0:2.6.18-92.1.22.el50:2.6.18-92.1.22.el5
Red Hat:enterprise_linux:5::serverkernel-kdump-debuginfobefore 0:2.6.18-92.1.22.el50:2.6.18-92.1.22.el5
Red Hat:enterprise_linux:5::serverkernel-kdump-develbefore 0:2.6.18-92.1.22.el50:2.6.18-92.1.22.el5
Red Hat:enterprise_mrg:1::el5kernel-rtbefore 0:2.6.24.7-93.el5rt0:2.6.24.7-93.el5rt
Red Hat:enterprise_mrg:1::el5kernel-rt-debugbefore 0:2.6.24.7-93.el5rt0:2.6.24.7-93.el5rt

+12

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe…KEV
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  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2008-4445Oct 6, 2008 · The sctp_auth_ep_set_hmacs function in net/sctp/auth.c in the Stream Control Transmission Protocol (sctp) implementation in the Linux…
    18Monitor
  • ← EarlierCVE-2008-4554Oct 15, 2008 · The do_splice_from function in fs/splice.c in the Linux kernel before 2.6.27 does not reject file descriptors that have the O_APPEND flag…
    18Monitor
  • Later →CVE-2008-3831Oct 20, 2008 · The i915 driver in (1) drivers/char/drm/i915_dma.c in the Linux kernel 2.6.24 on Debian GNU/Linux and (2) sys/dev/pci/drm/i915_drv.c in…
    18Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:fai-kernels1.17+etch.23etch1 · Debian:4.0Package registry (OSV)
debian:linux-2.62.6.18.dfsg.1-23etch1 · Debian:4.0Package registry (OSV)
debian:linux-2.6.242.6.24-6~etchnhalf.7 · Debian:4.0Package registry (OSV)
debian:user-mode-linux2.6.18-1um-2etch.23etch1 · Debian:4.0Package registry (OSV)
red hat:kernel0:2.6.18-92.1.22.el5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:kernel-debug0:2.6.18-92.1.22.el5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:kernel-debug-debuginfo0:2.6.18-92.1.22.el5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:kernel-debug-devel0:2.6.18-92.1.22.el5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:kernel-debuginfo0:2.6.18-92.1.22.el5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:kernel-debuginfo-common0:2.6.18-92.1.22.el5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:kernel-devel0:2.6.18-92.1.22.el5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:kernel-doc0:2.6.18-92.1.22.el5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:kernel-headers0:2.6.18-92.1.22.el5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:kernel-PAE0:2.6.18-92.1.22.el5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:kernel-PAE-debuginfo0:2.6.18-92.1.22.el5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)
red hat:kernel-PAE-devel0:2.6.18-92.1.22.el5 · Red Hat:enterprise_linux:5::clientPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
C · the service can be disrupted
Attack complexity
Low
Confidentiality impact
None
Integrity impact
None
Availability impact
C

Weakness class (CWE)

CWE-287 · Improper Authentication

CVSS vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

nvd-primary

Root cause

Authentication is added route by route instead of being enforced in one place. When a route added later bypasses the shared middleware, the session check never runs for it.

The bug in code

The whole CWE-287 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
app.use("/admin", requireSession, adminRouter);
// Route added later skips the middlewareapp.post("/admin-api/config", updateConfig);

Fixed

ts
const admin = express.Router();admin.use(requireSession, requireRole("admin"));
admin.post("/config", updateConfig);app.use("/admin", admin);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

References

Show all references (19 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records