CVE-2024-36912 [High] | Information Disclosure in Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: Track decrypted status in vmbus_gpadl 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. In order to make sure callers of vmbus_establish_gpadl() and vmbus_teardown_gpadl() don't return decrypted/shared pages to allocators, add a field in struct vmbus_gpadl to keep track of the decryption status of the buffers. This will allow the callers to know if they should free or leak the pages.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.05%	0.92%	+0.87%
2	2026-01-09	0.06%	0.05%	-0.01%
3	2025-11-21	—	0.06%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.05%

0.92%

+0.87%

2026-01-09

0.06%

0.05%

-0.01%

2025-11-21

—

0.06%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
8.1	3.1	HIGH	`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:H) Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	2.2	5.9	134c704f-9b21-4f2e-91b3-4a467353bcc0

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

8.1

3.1

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand

Attack vector (AV:N): Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H): Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

2.2

5.9

134c704f-9b21-4f2e-91b3-4a467353bcc0

OS Trackers for CVE-2024-36912

vendor	priority	summary	link
`debian`	unimportant	CVE-2024-36912 unimportant priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5.	https://security-tracker.debian.org/tracker/CVE-2024-36912
`redhat`	low	—	https://access.redhat.com/security/cve/CVE-2024-36912
`suse`	medium	CVE-2024-36912 severity moderate: SUSE including 523 source package names (15.5.22.2:kernel-default-devel-5.14.21-150500.55.73.1, 15.5.22.2:kernel-devel-5.14.21-150500.55.73.1, …), 964 product×package rows across 175 product lines (Container bci/bci-sle15-kernel-module-devel, Container suse/sle-micro/base-5.5, … (175 product lines)): Fixed 596, Known Affected 231, Known Not Affected 137.	https://www.suse.com/security/cve/CVE-2024-36912/
`ubuntu`	high	CVE-2024-36912 high priority: Ubuntu including 160 source packages (linux, linux-allwinner-5.19, …), 1686 status rows across 11 suites (bionic, focal, jammy, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 1267, ignored 147, not-affected 138, released 130, needed 4.	https://ubuntu.com/security/CVE-2024-36912

Affected software / configurations for CVE-2024-36912

Vendor	Product	Version	Raw CPE
linux	linux_kernel	>= 5.16, < 6.1.91	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 6.2, < 6.6.31	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 6.7, < 6.8.10	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	6.9	cpe:2.3:o:linux:linux_kernel:6.9:rc1::::::
linux	linux_kernel	6.9	cpe:2.3:o:linux:linux_kernel:6.9:rc2::::::
linux	linux_kernel	6.9	cpe:2.3:o:linux:linux_kernel:6.9:rc3::::::

References for CVE-2024-36912

URL	Tags
https://git.kernel.org/stable/c/1999644d95194d4a58d3e80ad04ce19220a01a81	Patch
https://git.kernel.org/stable/c/211f514ebf1ef5de37b1cf6df9d28a56cfd242ca	Patch
https://git.kernel.org/stable/c/8e62341f5c45b27519b7d193bcc32ada416ad9d8	Patch
https://git.kernel.org/stable/c/bfae56be077ba14311509e70706a13458f87ea99	Patch

URL

CVE-2024-36912 | Drivers: hv: vmbus: Track decrypted status in vmbus_gpadl

Exploit prediction scoring system (EPSS) score for CVE-2024-36912

Common vulnerability scoring system (CVSS) metrics for CVE-2024-36912

Weakness enumeration for CVE-2024-36912

OS Trackers for CVE-2024-36912

Affected software / configurations for CVE-2024-36912

References for CVE-2024-36912