CVE-2015-8787

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-13. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 9%CVSS: 9.8Exploit: None knownExposed: 0

A fix is available — apply it.

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.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
52(Track)
EG Risk 52/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation9% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
9%
EPSS %ILE
95%
KEV
Not listed

Published

February 8, 2016

Last Modified

June 17, 2026

Advisory Details (2)

Auto-updated Jul 27, 2026
No patch confirmed yet.
generic

oss-security - CVE Request: Linux: NULL pointer dereference netfilter/nf_nat_redirect.c in nf_nat_redirect_ipv4 function

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

netfilter: nf_nat_redirect: add missing NULL pointer check - kernel/git/torvalds/linux.git - Linux kernel source tree

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

Patch Availability(5)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-3.19.0-49-powerpc64-smp (3.19.0-49.55) @ vivid2026-05-20ubuntu
ubuntulinux-image-4.2.0-1022-raspi2 (4.2.0-1022.29) @ wily2026-05-20ubuntu
ubuntulinux-image-extra-3.19.0-49-generic (3.19.0-49.55~14.04.1) @ trusty2026-05-20ubuntu
ubuntulinux-image-extra-4.2.0-27-generic (4.2.0-27.32~14.04.1) @ trusty2026-05-20ubuntu
ubuntulinux-image-4.2.0-27-generic (4.2.0-27.32) @ wily2026-05-20ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(5)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 10× in last 7d / 40× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 119 total refreshes for this CVE.

  1. 2026-07-25 14:13 UTCEPSS rescore
  2. 2026-07-25 02:41 UTCOSV refresh
  3. 2026-07-24 14:13 UTCEPSS rescore
  4. 2026-07-23 14:14 UTCEPSS rescore
  5. 2026-07-23 01:20 UTCEG score recompute
  6. 2026-07-23 00:21 UTCEG score recompute
  7. 2026-07-22 22:00 UTCEG score recompute
  8. 2026-07-22 14:04 UTCEPSS rescore
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  1. 2026-07-09 19:05 UTCEPSS rescore
  2. 2026-07-08 15:10 UTCEPSS rescore
  3. 2026-07-07 21:27 UTCOSV refresh
  4. 2026-07-07 13:42 UTCEPSS rescore
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  6. 2026-07-06 16:24 UTCEPSS rescore
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  26. 2026-06-21 01:57 UTCEPSS rescore
  27. 2026-06-21 01:57 UTCEPSS rescore
  28. 2026-06-19 19:23 UTCEPSS rescore
  29. 2026-06-19 19:23 UTCEPSS rescore
  30. 2026-06-19 09:25 UTCOSV refresh
  31. 2026-06-18 17:50 UTCEPSS rescore
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  45. 2026-06-08 14:14 UTCEPSS rescore
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  54. 2026-06-01 13:49 UTCEPSS rescore
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  56. 2026-05-31 22:28 UTCEPSS rescore
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  58. 2026-05-31 00:14 UTCEPSS rescore
  59. 2026-05-30 18:53 UTCOSV refresh
  60. 2026-05-29 13:41 UTCEPSS rescore
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  74. 2026-05-20 07:45 UTCVendor advisory
  75. 2026-05-20 07:45 UTCGHSA enrichment

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2015-8787?
CVE-2015-8787 is a critical vulnerability published on February 8, 2016. The nfnatredirectipv4 function in net/netfilter/nfnat_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…
When was CVE-2015-8787 disclosed?
CVE-2015-8787 was first published in the National Vulnerability Database on February 8, 2016, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2015-8787 actively exploited?
CVE-2015-8787 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 9% probability of exploitation in the next 30 days, which ranks it in the top 5.2% of all scored CVEs.
What is the CVSS score of CVE-2015-8787?
CVE-2015-8787 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2015-8787?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-8787, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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