CVE-2024-36913: Drivers: hv: vmbus: Leak pages if set_memory_encrypted() fails
Vulnerability summary
CVE-2024-36913 is a critical (CVSS 9.3) vulnerability in debian debian_linux. EPSS estimates a 0.66% chance of exploitation in the next 30 days, higher than 51.5% of scored vulnerabilities.
Severe, CVSS 9.3 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 1% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 17 · Related 13Timeline
- 30-05-2024PublishedVulnerability first disclosed.
- 05-08-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: Leak pages if set_memory_encrypted() fails In CoCo VMs it is possible for the untrusted host to cause set_memory_encrypted() or set_memory_decrypted() to fail such that an error is returned and the resulting memory is shared. Callers need to take care to handle these errors to avoid returning decrypted (shared) memory to the page allocator, which could lead to functional or security issues. VMBus code could free decrypted pages if set_memory_encrypted()/decrypted() fails. Leak the pages if this happens.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated9.3CriticalCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.3CriticalCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- NVDNIST9.3CriticalCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS trend
Probability
0.66%
Chance of exploitation in the next 30 days
Percentile
52%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.66% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu100 products
- linux< 6.8.0-40.40
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 6.8.0-1013.14
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian2 products
- linux< 6.1.147-1 | < 6.8.11-1
- debian_linuxEOL11.0
Linux2 products
- linux≥ f2f136c05fb6093818a3b3fefcba46231ac66a62, < 7f2afcbfe4f6b6047b5f68db5067b7321e5be125 | ≥ f2f136c05fb6093818a3b3fefcba46231ac66a62, < 6123a4e8e25bd40cf44db14694abac00e6b664e6 | ≥ f2f136c05fb6093818a3b3fefcba46231ac66a62, < e813a0fc2e597146e9cebea61ced9c796d4e308f | ≥ f2f136c05fb6093818a3b3fefcba46231ac66a62, < 03f5a999adba062456c8c818a683beb1b498983a | 5.16
- linux_kernel≥ 5.16, < 6.1.143 | ≥ 6.2, < 6.6.31 | ≥ 6.7, < 6.8.10 | 6.9:rc1 | 6.9:rc2 | 6.9:rc3
3 vendors · 104 products
