HOME VULNERABILITIESCVE-2015-8787

CRITICAL

CVE-2015-8787

CWE-476Published: February 8, 2016· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

The nf_nat_redirect_ipv4 function in net/netfilter/nf_nat_redirect.c in the Linux kernel before 4.4 allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by sending certain IPv4 packets to an incompletely configured interface, a related issue to CVE-2003-1604.

Technical Analysis

CVE-2015-8787 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Linux1 product(s)

linux kernel

Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=94f9cd81436c85d8c3a318ba92e236ede73752fc

PATCHhttps://github.com/torvalds/linux/commit/94f9cd81436c85d8c3a318ba92e236ede73752fc

PATCHhttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=94f9cd81436c85d8c3a318ba92e236ede73752fc

PATCHhttps://github.com/torvalds/linux/commit/94f9cd81436c85d8c3a318ba92e236ede73752fc

ADVISORYhttp://lists.fedoraproject.org/pipermail/package-announce/2016-February/176464.html

ADVISORYhttp://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html

ADVISORYhttp://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html

ADVISORYhttp://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html

ADVISORYhttp://www.ubuntu.com/usn/USN-2889-1

ADVISORYhttp://www.ubuntu.com/usn/USN-2889-2

ADVISORYhttp://www.ubuntu.com/usn/USN-2890-1

ADVISORYhttp://www.ubuntu.com/usn/USN-2890-2

ADVISORYhttp://www.ubuntu.com/usn/USN-2890-3

ADVISORYhttp://lists.fedoraproject.org/pipermail/package-announce/2016-February/176464.html

ADVISORYhttp://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html

ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html

ADVISORYhttp://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html

ADVISORYhttp://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html

ADVISORYhttp://www.ubuntu.com/usn/USN-2889-1

ADVISORYhttp://www.ubuntu.com/usn/USN-2889-2

ADVISORYhttp://www.ubuntu.com/usn/USN-2890-1

ADVISORYhttp://www.ubuntu.com/usn/USN-2890-2

ADVISORYhttp://www.ubuntu.com/usn/USN-2890-3

All References (28)

→

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=94f9cd81436c85d8c3a318ba92e236ede73752fcIssue Tracking · Patch · Vendor Advisory

→

http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176464.htmlThird Party Advisory

→

http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.htmlThird Party Advisory

→

http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.htmlThird Party Advisory

→

http://www.openwall.com/lists/oss-security/2016/01/27/6Mailing List

→

http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.htmlThird Party Advisory

→

http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.htmlThird Party Advisory

→

http://www.ubuntu.com/usn/USN-2889-1Third Party Advisory

→

http://www.ubuntu.com/usn/USN-2889-2Third Party Advisory

→

http://www.ubuntu.com/usn/USN-2890-1Third Party Advisory

→

http://www.ubuntu.com/usn/USN-2890-2Third Party Advisory

→

http://www.ubuntu.com/usn/USN-2890-3Third Party Advisory

→

https://bugzilla.redhat.com/show_bug.cgi?id=1300731Issue Tracking

→

https://github.com/torvalds/linux/commit/94f9cd81436c85d8c3a318ba92e236ede73752fcIssue Tracking · Patch · Third Party Advisory

→

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=94f9cd81436c85d8c3a318ba92e236ede73752fcIssue Tracking · Patch · Vendor Advisory

Quick Facts

CVE IDCVE-2015-8787

CVSS Score9.8 / 10

SeverityCRITICAL

WeaknessCWE-476

CISA KEVNo

Affected1 vendor(s)

PublishedFeb 8, 2016

Related CVEs (CWE-476)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2015-8787 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.

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