CVE-2025-68813

UNRATEDCVSS · not yet scored

Also known asEUVD-2026-2288 (ENISA EUVD) · GHSA-r9w6-9rjj-r9c5 (GitHub Security Advisories)Source: ENISA EUVD

—
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No CVSS published and no exploitation signals yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS v2: —Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

ipvs: fix ipv4 null-ptr-deref in route error path

The IPv4 code path in __ip_vs_get_out_rt() calls dst_link_failure() without ensuring skb->dev is set, leading to a NULL pointer dereference in fib_compute_spec_dst() when ipv4_link_failure() attempts to send ICMP destination unreachable messages.

The issue emerged after commit ed0de45a1008 ("ipv4: recompile ip options in ipv4_link_failure") started calling __ip_options_compile() from ipv4_link_failure(). This code path eventually calls fib_compute_spec_dst() which dereferences skb->dev. An attempt was made to fix the NULL skb->dev dereference in commit 0113d9c9d1cc ("ipv4: fix null-deref in ipv4_link_failure"), but it only addressed the immediate dev_net(skb->dev) dereference by using a fallback device. The fix was incomplete because fib_compute_spec_dst() later in the call chain still accesses skb->dev directly, which remains NULL when IPVS calls dst_link_failure().

The crash occurs when:

  • IPVS processes a packet in NAT mode with a misconfigured destination
  • Route lookup fails in __ip_vs_get_out_rt() before establishing a route
  • The error path calls dst_link_failure(skb) with skb->dev == NULL
  • ipv4_link_failure() → ipv4_send_dest_unreach() →
__ip_options_compile() → fib_compute_spec_dst()
  • fib_compute_spec_dst() dereferences NULL skb->dev

Apply the same fix used for IPv6 in commit 326bf17ea5d4 ("ipvs: fix ipv6 route unreach panic"): set skb->dev from skb_dst(skb)->dev before calling dst_link_failure().

KASAN: null-ptr-deref in range [0x0000000000000328-0x000000000000032f] CPU: 1 PID: 12732 Comm: syz.1.3469 Not tainted 6.6.114 #2 RIP: 0010:__in_dev_get_rcu include/linux/inetdevice.h:233 RIP: 0010:fib_compute_spec_dst+0x17a/0x9f0 net/ipv4/fib_frontend.c:285 Call Trace: spec_dst_fill net/ipv4/ip_options.c:232 spec_dst_fill net/ipv4/ip_options.c:229 __ip_options_compile+0x13a1/0x17d0 net/ipv4/ip_options.c:330 ipv4_send_dest_unreach net/ipv4/route.c:1252 ipv4_link_failure+0x702/0xb80 net/ipv4/route.c:1265 dst_link_failure include/net/dst.h:437 __ip_vs_get_out_rt+0x15fd/0x19e0 net/netfilter/ipvs/ip_vs_xmit.c:412 ip_vs_nat_xmit+0x1d8/0xc80 net/netfilter/ipvs/ip_vs_xmit.c:764

CVSS
—
EchelonGraph score
Not yet assessedNo source has published severity data for this CVE yet — no CVSS score from NVD or a CNA, no GitHub advisory, and it is not in CISA KEV. This is not a rating of zero; we cannot assess it yet.
EG Score
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EG Risk
—
EPSS PROB
0.2%
EPSS %ILE
10th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

EG Severity
Not assessed: no CVSS publishedA missing CVSS is not a severity of zero.
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-24). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
No SSVC decision: EchelonGraph has not assessed this CVECISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the BOD 26-04 block below.

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

January 13, 2026

Last Modified

October 19, 2026

References (7)

Vendor Advisories for CVE-2025-68813(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(31)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-tools-realtime-5.15 (5.15.0.1102.106) @ jammy2026-10-19ubuntu
ubuntulinux-tools-intel-iot-realtime-5.15 (5.15.0.1094.98) @ jammy2026-10-19ubuntu
ubuntulinux-tools-raspi-6.17 (6.17.0-1014.14) @ questing2026-10-19ubuntu
ubuntulinux-tools-azure-6.17 (6.17.0-1013.13) @ questing2026-10-19ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2042.43) @ noble2026-10-19ubuntu
ubuntulinux-tools-azure-edge (5.15.0.1110.119~20.04.1) @ focal2026-10-19ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1054.60) @ noble2026-10-19ubuntu
ubuntulinux-tools-gcp-edge (6.8.0-1054.57~22.04.1) @ jammy2026-10-19ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1029.30) @ noble2026-10-19ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1054.60+fips1) @ noble2026-10-19ubuntu
ubuntulinux-tools-nvidia-tegra-igx-rt-5.15 (5.15.0.1044.46) @ jammy2026-10-19ubuntu
ubuntulinux-tools-raspi-nolpae (5.15.0.1097.95) @ jammy2026-10-19ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1067 (5.15.0-1067.71) @ jammy2026-10-19ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1109.94) @ jammy2026-10-19ubuntu
ubuntulinux-tools-gcp-fips-5.15 (5.15.0.1103.93) @ jammy2026-10-19ubuntu
ubuntulinux-tools-gke-5.15 (5.15.0.1099.98) @ jammy2026-10-19ubuntu
ubuntulinux-tools-azure-lts-22.04 (5.15.0.1109.107) @ jammy2026-10-19ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.17.0-22.22) @ questing2026-10-19ubuntu
ubuntulinux-virtual-6.8 (6.8.0-110.110) @ noble2026-10-19ubuntu
ubuntulinux-tools-realtime-hwe-24.04-edge (6.17.0-1010.11~24.04.1) @ noble2026-10-19ubuntu
ubuntulinux-tools-gcp-64k-6.17 (6.17.0-1012.12) @ questing2026-10-19ubuntu
ubuntulinux-tools-realtime-6.8.1 (6.8.1-1047.48) @ noble2026-10-19ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1054.57+fips1) @ noble2026-10-19ubuntu
ubuntulinux-tools-nvidia-64k-6.8 (6.8.0-1051.54) @ noble2026-10-19ubuntu
ubuntulinux-tools-oracle-64k-6.17 (6.17.0-1011.11) @ questing2026-10-19ubuntu
ubuntulinux-tools-raspi-6.8 (6.8.0-1052.56) @ noble2026-10-19ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1051.54.1) @ noble2026-10-19ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1049.50) @ noble2026-10-19ubuntu
ubuntulinux-tools-nvidia-tegra-rt-6.8 (6.8.0-1022.22) @ noble2026-10-19ubuntu
ubuntulinux-tools-azure-edge (6.8.0-1059.65~22.04.1) @ jammy2026-10-19ubuntu
linuxKernel @ 5.10.248 (fixes >=5.1.0)—osv

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.

Affected Packages

(5 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFix by version rangeDependents
linux5.10.103-1 ... 5.10.92-2 (48 versions)
  • every version up to 5.10.249-1: fixed in 5.10.249-1
—
linux-6.16.1.106-3~deb11u1 ... 6.1.159-1~deb11u1 (14 versions)
  • every version up to 6.1.162-1~deb11u1: fixed in 6.1.162-1~deb11u1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (46 versions)
  • every version up to 6.1.162-1: fixed in 6.1.162-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.38-1 ... 6.12.69-1~bpo12+1 (10 versions)
  • every version up to 6.12.69-1: fixed in 6.12.69-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 6.18~rc7-1~exp1 (95 versions)
  • every version up to 6.18.3-1: fixed in 6.18.3-1
—

Weakness Classification(1)

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

All Vendor Advisories

(25)

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 6× in last 7d / 36× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 242 rows on record for this CVE, as 99 entries (1 repeat merged).

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 100 is merged into the row it repeats. The 142 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-12 16:32 UTCEPSS rescoreEPSS 0.2% · 10th percentile
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  16. 2026-10-28 12:25 UTCOSV refresh
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  19. 2026-10-25 16:31 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  20. 2026-10-25 16:04 UTCEchelonGraph re-scored
  21. 2026-10-24 16:31 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  22. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.2% · 10th percentile
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Show 74 more
  1. 2026-10-19 20:25 UTCVendor advisory
  2. 2026-10-19 20:25 UTCGHSA enrichmentGHSA-r9w6-9rjj-r9c5
  3. 2026-10-19 19:25 UTCNVD update
  4. 2026-10-19 18:35 UTCEchelonGraph re-scored
  5. 2026-10-19 18:35 UTCVendor advisory
  6. 2026-10-19 18:35 UTCGHSA enrichmentGHSA-r9w6-9rjj-r9c5
  7. 2026-10-19 18:27 UTCMITRE cvelistV5
  8. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  9. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  10. 2026-10-18 05:17 UTCEchelonGraph re-scored
  11. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  12. 2026-10-16 16:39 UTCEPSS rescoreEPSS 0.2% · 10th percentile
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  15. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  16. 2026-10-12 16:47 UTCEchelonGraph re-scored
  17. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  18. 2026-10-11 20:21 UTCEchelonGraph re-scored
  19. 2026-10-11 18:33 UTCEchelonGraph re-scored
  20. 2026-10-11 15:08 UTCEchelonGraph re-scored
  21. 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  22. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  23. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  24. 2026-10-08 21:58 UTCOSV refresh
  25. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.2% · 9th percentile
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  39. 2026-09-19 04:36 UTCOSV refresh
  40. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.2% · 10th percentile
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  55. 2026-08-31 08:25 UTCOSV refresh
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  69. 2026-08-14 14:43 UTCVendor advisory
  70. 2026-08-14 14:43 UTCGHSA enrichmentGHSA-r9w6-9rjj-r9c5
  71. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.2% · 7th percentile
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Related CVEs(same vendor + same CWE)

Frequently asked(4)

What is CVE-2025-68813?
CVE-2025-68813 is a vulnerability whose severity is not yet rated; its CVE record was published on January 13, 2026. In the Linux kernel, the following vulnerability has been resolved: ipvs: fix ipv4 null-ptr-deref in route error path The IPv4 code path in __ip_vs_get_out_rt() calls dst_link_failure() without ensuring skb->dev is set, leading to a NULL pointer dereference in fib_compute_spec_dst() when…
When was the CVE record for CVE-2025-68813 published?
The CVE record for CVE-2025-68813 was published on January 13, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 19, 2026; the record at its source may have been updated since.
Is CVE-2025-68813 actively exploited?
CVE-2025-68813 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (10th percentile of EPSS-scored CVEs).
How do I remediate CVE-2025-68813?
A fix for CVE-2025-68813 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2025-68813 are linked in the Vendor Advisories panel on this page.

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