9.3

CVE-2026-72277: linux

CVSS: 9.3v3.1CriticalReceived
AliasesUBUNTU-CVE-2026-72277DEBIAN-CVE-2026-72277
Published 15-08-2026Last modified 17-08-2026
Open JSON

Vulnerability summary

CVE-2026-72277 is a critical (CVSS 9.3) vulnerability in linux. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 8.5% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.3/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.19%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 6 · Related 6
USN-8816-1USN-8816-2USN-8816-3USN-8816-4USN-8888-1USN-8888-2

Timeline

  1. 15-08-2026
    PublishedVulnerability first disclosed.
  2. 17-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Inject SEA if guest VNCR isn't normal memory When constructing an L1 VNCR mapping, KVM unconditionally uses cacheable memory attributes, even if the underlying PFN isn't memory. This gets particularly hairy if the endpoint doesn't support cacheable memory attributes, potentially throwing an SError on writeback... While KVM does permit cacheable memory attributes on certain PFNMAP VMAs, kvm_translate_vncr() isn't currently grabbing the VMA. So do the simpler thing for now and just reject everything that isn't memory.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.19%

Chance of exploitation in the next 30 days

Percentile

9%

Versus all other CVEs

30-day change

0.00 pp

From 0.19% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.19%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu120 products
  • linux< 7.0.0-34.34
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 7.0.0-1013.13
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 7.1.5-1
Linux1 product
  • linux≥ 2a359e072596fcb2e9e85017a865e3618a2fe5b5, < d5436e18e4fc2886ac306304d884ea3b92e1edbf | ≥ 2a359e072596fcb2e9e85017a865e3618a2fe5b5, < bc00e0e376ee3572f5d26c174473abef1e35decc | ≥ 2a359e072596fcb2e9e85017a865e3618a2fe5b5, < 4bd7dbe0b2243e6aa735cae4d5e1ff988b30b2a6 | 6.16

3 vendors · 122 products

References

13 links
Show all 13 references