“—” beside the score: it is equal to NVD's CVSS score.
Score 5.5 from GitHub Security Advisory (severity: MODERATE) published 2026-05-06. NVD baseline CVSS 5.5; sources differ by 0.0.
Also known asEUVD-2026-27589 (ENISA EUVD) · GHSA-8xhw-c2pc-2vqq (GitHub Security Advisories)Source: ENISA EUVD
A fix is available — apply it.
In the Linux kernel, the following vulnerability has been resolved:
xfrm_user: fix info leak in build_mapping()
struct xfrm_usersa_id has a one-byte padding hole after the proto field, which ends up never getting set to zero before copying out to userspace. Fix that up by zeroing out the whole structure before setting individual variables.
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (5.5): severity, escalated by confirmed exploitation. This CVE's 5.5 is its impact severity (EG Severity), not escalated.
SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.
A fix is available. Apply it within your standard update timelines.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.
The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (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
May 6, 2026
November 11, 2026
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
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.
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| linux | 5.10.103-1 ... 5.10.92-2 (54 versions) |
| — |
| linux-6.1 | 6.1.106-3~deb11u1 ... 6.1.174-1~deb11u1 (20 versions) |
| — |
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| linux | 6.1.106-1 ... 6.1.99-1 (53 versions) |
| — |
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| linux | 6.12.38-1 ... 6.12.85-1~bpo12+1 (17 versions) |
| — |
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| linux | 6.12.100-1 ... 6.19~rc8-1~exp1 (133 versions) |
| — |
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
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.
Linux kernel vulnerabilities
Linux kernel (GCP FIPS) vulnerabilities
Linux kernel vulnerabilities
Linux kernel vulnerabilities
Linux kernel vulnerabilities
Linux kernel vulnerabilities
Linux kernel vulnerabilities
Linux kernel (NVIDIA Tegra) vulnerabilities
Linux kernel (NVIDIA Tegra) vulnerabilities
Linux kernel (Oracle) vulnerabilities
Linux kernel (AWS) vulnerabilities
Linux kernel (AWS) vulnerabilities
Linux kernel (NVIDIA) vulnerabilities
Linux kernel (IBM) vulnerabilities
Linux kernel (Azure) vulnerabilities
Linux kernel (Azure CVM) vulnerabilities
Linux kernel (Azure FIPS) vulnerabilities
Linux kernel (Azure CVM) vulnerabilities
Linux kernel (Azure CVM) vulnerabilities
Linux kernel (HWE) vulnerabilities
Linux kernel vulnerabilities
Linux kernel (Azure FIPS) vulnerabilities
Linux kernel (Intel IoTG) vulnerabilities
Linux kernel (Intel IoTG) vulnerabilities
Linux kernel (Raspberry Pi) vulnerabilities
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 v3 → 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 263 rows on record for this CVE.
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. None are among the latest 100 rows. The 163 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
ubuntu:USN-8567-1
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-43089
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.