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CVE-2025-58145

Arm issues with page refcounting

7.5 HighFix available

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.]

There are two issues related to the mapping of pages belonging to other domains: For one, an assertion is wrong there, where the case actually needs handling. A NULL pointer de-reference could result on a release build. This is CVE-2025-58144.

And then the P2M lock isn't held until a page reference was actually obtained (or the attempt to do so has failed). Otherwise the page can not only change type, but even ownership in between, thus allowing domain boundaries to be violated. This is CVE-2025-58145.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

0.37%Up 0.3 points since Sep 12, 2025
90%50%10%1%

What each source reports

CVE List Score used 7.5

Arm issues with page refcounting

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.]

There are two issues related to the mapping of pages belonging to other domains: For one, an assertion is wrong there, where the case actually needs handling. A NULL pointer de-reference could result on a release build. This is CVE-2025-58144.

And then the P2M lock isn't held until a page reference was actually obtained (or the attempt to do so has failed). Otherwise the page can not only change type, but even ownership in between, thus allowing domain boundaries to be violated. This is CVE-2025-58145.

Record
CVE-2025-58145
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-362
Updated
2026-11-02
EUVDEUVD-2025-28909 7.5

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.]

There are two issues related to the mapping of pages belonging to other domains: For one, an assertion is wrong there, where the case actually needs handling. A NULL pointer de-reference could result on a release build. This is CVE-2025-58144.

And then the P2M lock isn't held until a page reference was actually obtained (or the attempt to do so has failed). Otherwise the page can not only change type, but even ownership in between, thus allowing domain boundaries to be violated. This is CVE-2025-58145.

Record
EUVD-2025-28909
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-j9v5-p5pj-rmp7 7.5

[This CNA information record relates to multiple CVEs; the text explains which aspects...

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.]

There are two issues related to the mapping of pages belonging to other domains: For one, an assertion is wrong there, where the case actually needs handling. A NULL pointer de-reference could result on a release build. This is CVE-2025-58144.

And then the P2M lock isn't held until a page reference was actually obtained (or the attempt to do so has failed). Otherwise the page can not only change type, but even ownership in between, thus allowing domain boundaries to be violated. This is CVE-2025-58145.

Record
GHSA-j9v5-p5pj-rmp7
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-362
Updated
2026-11-02
NVD 7.5

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.]

There are two issues related to the mapping of pages belonging to other domains: For one, an assertion is wrong there, where the case actually needs handling. A NULL pointer de-reference could result on a release build. This is CVE-2025-58144.

And then the P2M lock isn't held until a page reference was actually obtained (or the attempt to do so has failed). Otherwise the page can not only change type, but even ownership in between, thus allowing domain boundaries to be violated. This is CVE-2025-58145.

Record
CVE-2025-58145
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-362
Updated
2026-11-02
OSVALPINE-CVE-2025-58145 7.5

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.]

There are two issues related to the mapping of pages belonging to other domains: For one, an assertion is wrong there, where the case actually needs handling. A NULL pointer de-reference could result on a release build. This is CVE-2025-58144.

And then the P2M lock isn't held until a page reference was actually obtained (or the attempt to do so has failed). Otherwise the page can not only change type, but even ownership in between, thus allowing domain boundaries to be violated. This is CVE-2025-58145.

Record
ALPINE-CVE-2025-58145
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSV 7.5

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.]

There are two issues related to the mapping of pages belonging to other domains: For one, an assertion is wrong there, where the case actually needs handling. A NULL pointer de-reference could result on a release build. This is CVE-2025-58144.

And then the P2M lock isn't held until a page reference was actually obtained (or the attempt to do so has failed). Otherwise the page can not only change type, but even ownership in between, thus allowing domain boundaries to be violated. This is CVE-2025-58145.

Record
CVE-2025-58145
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2025-58145 7.5

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] There are two issues related to the mapping of pages belonging to other domains: For one, an assertion is wrong there, where the case actually needs handling. A NULL pointer de-reference could result on a release build. This is CVE-2025-58144. And then the P2M lock isn't held until a page reference was actually obtained (or the attempt to do so has failed). Otherwise the page can not only change type, but even ownership in between, thus allowing domain boundaries to be violated. This is CVE-2025-58145.

Record
DEBIAN-CVE-2025-58145
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2025-58145 7.5

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] There are two issues related to the mapping of pages belonging to other domains: For one, an assertion is wrong there, where the case actually needs handling. A NULL pointer de-reference could result on a release build. This is CVE-2025-58144. And then the P2M lock isn't held until a page reference was actually obtained (or the attempt to do so has failed). Otherwise the page can not only change type, but even ownership in between, thus allowing domain boundaries to be violated. This is CVE-2025-58145.

Record
UBUNTU-CVE-2025-58145
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVMGASA-2025-0270 No score

Updated xen packages fix security vulnerabilities

Double unlock in x86 guest IRQ handling. (CVE-2024-31143) Xapi: Metadata injection attack against backup/restore functionality. (CVE-2024-31144) Error handling in x86 IOMMU identity mapping. (CVE-2024-31145) PCI device pass-through with shared resources. (CVE-2024-31146) x86: Deadlock in vlapic_error(). (CVE-2024-45817) Deadlock in x86 HVM standard VGA handling. (CVE-2024-45818) libxl leaks data to PVH guests via ACPI tables. (CVE-2024-45819) Backend can crash Linux netfront. (CVE-2024-53240) Xen hypercall page unsafe against speculative attacks. (CVE-2024-53241) Deadlock potential with VT-d and legacy PCI device pass-through. (CVE-2025-1713) x86: Indirect Target Selection. (CVE-2024-28956) x86: Incorrect stubs exception handling for flags recovery. (CVE-2025-27465) TSA-SQ (TSA in the Store Queues). (CVE-2024-36350) TSA-L1 (TSA in the L1 data cache). (CVE-2024-36357) A NULL pointer dereference in the updating of the reference TSC area. (CVE-2025-27466) A NULL pointer dereference by assuming the SIM page is mapped when a synthetic timer message has to be delivered. (CVE-2025-58142) A race in the mapping of the reference TSC page, where a guest can get Xen to free a page while still present in the guest physical to machine (p2m) page tables. (CVE-2025-58143) An assertion is wrong there, where the case actually needs handling. A NULL pointer de-reference could result on a release build. (CVE-2025-58144) The P2M lock isn't held until a page reference was actually obtained (or the attempt to do so has failed). Otherwise the page can not only change type, but even ownership in between, thus allowing domain boundaries to be violated. (CVE-2025-58145) XAPI UTF-8 string handling. (CVE-2025-58146) Hypercalls using the HV_VP_SET Sparse format can cause vpmask_set() to write out of bounds when converting the bitmap to Xen's format. (CVE-2025-58147) Hypercalls using any input format can cause send_ipi() to read d->vcpu[] out-of-bounds, and operate on a wild vCPU pointer.(CVE-2025-58148) Incorrect removal of permissions on PCI device unplug. (CVE-2025-58149)

Record
MGASA-2025-0270
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
xen
Alpine:v3.19
4.12.0 up to 4.18.5-r2
4.18.5-r2
xen
Alpine:v3.20
4.12.0 up to 4.18.5-r2
4.18.5-r2
xen
Alpine:v3.21
4.12.0 up to 4.19.3-r1
4.19.3-r1
xen
Alpine:v3.22
4.12.0 up to 4.20.1-r1
4.20.1-r1
xen
Alpine:v3.23
4.12.0 up to 4.20.1-r1
4.20.1-r1
xen
Alpine:v3.24
4.12.0 up to 4.20.1-r1
4.20.1-r1
xen
Debian:12
before 4.17.5+72-g01140da4e8-1, plus listed versions
4.17.1+2-gb773c48e36-14.17.2+55-g0b56bed864-14.17.2+76-ge1f9cb16e2-14.17.2+76-ge1f9cb16e2-1~deb12u14.17.2-1
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4.17.3+10-g091466ba55-14.17.3+10-g091466ba55-1.14.17.3+10-g091466ba55-1.1~exp14.17.3+10-g091466ba55-1.1~exp24.17.3+10-g091466ba55-1~deb12u14.17.3+36-g54dacb5c02-14.17.5+23-ga4e5191dc0-14.17.5+23-ga4e5191dc0-1+deb12u1
4.17.5+72-g01140da4e8-1
xen
Debian:13
before 4.20.2+7-g1badcf5035-0+deb13u1, plus listed versions
4.20.0+68-g35cb38b222-1
4.20.2+7-g1badcf5035-0+deb13u1
xen
Debian:14
before 4.20.2+7-g1badcf5035-1, plus listed versions
4.20.0+68-g35cb38b222-1
4.20.2+7-g1badcf5035-1
xen
Mageia:9
before 4.17.5-1.git20251028.1.mga9
4.17.5-1.git20251028.1.mga9
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Affected packages
PackageAffectedFixed
xen
Ubuntu:16.04:LTS
All versions, plus listed versions
4.5.1-0ubuntu14.5.1-0ubuntu24.6.0-1ubuntu14.6.0-1ubuntu24.6.0-1ubuntu4
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4.6.0-1ubuntu4.14.6.0-1ubuntu4.24.6.0-1ubuntu4.34.6.5-0ubuntu14.6.5-0ubuntu1.14.6.5-0ubuntu1.24.6.5-0ubuntu1.4
None known
xen
Ubuntu:18.04:LTS
All versions, plus listed versions
4.9.0-0ubuntu34.9.0-0ubuntu44.9.2-0ubuntu1
None known
xen
Ubuntu:20.04:LTS
All versions, plus listed versions
4.9.2-0ubuntu24.9.2-0ubuntu64.9.2-0ubuntu74.11.3+24-g14b62ab3e5-1ubuntu14.11.3+24-g14b62ab3e5-1ubuntu24.11.3+24-g14b62ab3e5-1ubuntu2.24.11.3+24-g14b62ab3e5-1ubuntu2.3
None known
xen
Ubuntu:22.04:LTS
All versions, plus listed versions
4.11.4+24-gddaaccbbab-1ubuntu24.16.0-1~ubuntu24.16.0-1~ubuntu2.1
None known
xen
Ubuntu:24.04:LTS
All versions, plus listed versions
4.17.2-14.17.2+55-g0b56bed864-14.17.2+76-ge1f9cb16e2-14.17.2+76-ge1f9cb16e2-1ubuntu14.17.3+10-g091466ba55-14.17.3+10-g091466ba55-1.1ubuntu24.17.3+10-g091466ba55-1.1ubuntu3
None known
xen
Ubuntu:25.10
All versions, plus listed versions
4.20.0-1ubuntu14.20.0+68-g35cb38b222-1
None known
xen
Ubuntu:26.10
All versions, plus listed versions
4.20.2+7-g1badcf5035-2build24.20.2+37-g61ff35323e-1ubuntu14.20.3+127-gc42374a105-1
None known
xen
Ubuntu:26.04:LTS
All versions, plus listed versions
4.20.0+68-g35cb38b222-14.20.2+7-g1badcf5035-24.20.2+7-g1badcf5035-2build2
None known

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-58145 is a high vulnerability (CVSS 7.5) in Xen, published September 11, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.37%, the 31st percentile. Fixed in xen 4.18.5-r2.

References

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