CVE-2025-49180 | Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: integer overflow in x resize, rotate and reflect (randr) extension

A flaw was found in the RandR extension, where the RRChangeProviderProperty function does not properly validate input. This issue leads to an integer overflow when computing the total size to allocate.

Published: 2025-06-17 Last update: 2026-04-15 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2025-49180 is rated Moderate Risk (42.1/100): CVSS High severity, with low exploitation likelihood (EPSS 0.12%). Mandatory action: Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-49180

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-21 0.15% 0.12% -0.03%
2 2026-04-13 0.05% 0.15% +0.10%
3 2026-03-03 0.05%

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-49180

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
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.
1.8 5.9 [email protected]

Weakness enumeration for CVE-2025-49180

OS Trackers for CVE-2025-49180

vendor priority summary link
alpine CVE-2025-49180: 2 source package rows (xorg-server, xwayland); 4 state rows across 2 repos (3.22-community, edge-community); fixed 4, open 0. https://security.alpinelinux.org/vuln/CVE-2025-49180
debian not yet assigned CVE-2025-49180 not yet assigned priority: Debian including 2 source packages (xorg-server, xwayland), 9 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 7, open 2. https://security-tracker.debian.org/tracker/CVE-2025-49180
redhat high https://access.redhat.com/security/cve/CVE-2025-49180
suse high CVE-2025-49180 severity important: SUSE including 320 source package names (21.1-46.1:xorg-x11-server-21.1.11-150600.5.12.1, 21.1-46.1:xorg-x11-server-Xvfb-21.1.11-150600.5.12.1, …), 406 product×package rows across 57 product lines (Container suse/kiosk/xorg, Image SLES15-SP4-SAP, … (57 product lines)): Known Affected 231, Fixed 174, Known Not Affected 1. https://www.suse.com/security/cve/CVE-2025-49180/
ubuntu medium CVE-2025-49180 medium priority: Ubuntu including 7 source packages (xorg, xorg-hwe-16.04, …), 53 status rows across 10 suites (bionic, focal, jammy, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 20, released 17, not-affected 13, needs-triage 3. https://ubuntu.com/security/CVE-2025-49180

Affected software / configurations for CVE-2025-49180

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2025-49180

URL Tags
https://access.redhat.com/errata/RHSA-2025:10258
https://access.redhat.com/errata/RHSA-2025:10342
https://access.redhat.com/errata/RHSA-2025:10343
https://access.redhat.com/errata/RHSA-2025:10344
https://access.redhat.com/errata/RHSA-2025:10346
https://access.redhat.com/errata/RHSA-2025:10347
https://access.redhat.com/errata/RHSA-2025:10348
https://access.redhat.com/errata/RHSA-2025:10349
https://access.redhat.com/errata/RHSA-2025:10350
https://access.redhat.com/errata/RHSA-2025:10351
https://access.redhat.com/errata/RHSA-2025:10352
https://access.redhat.com/errata/RHSA-2025:10355
https://access.redhat.com/errata/RHSA-2025:10356
https://access.redhat.com/errata/RHSA-2025:10360
https://access.redhat.com/errata/RHSA-2025:10370
https://access.redhat.com/errata/RHSA-2025:10374
https://access.redhat.com/errata/RHSA-2025:10375
https://access.redhat.com/errata/RHSA-2025:10376
https://access.redhat.com/errata/RHSA-2025:10377
https://access.redhat.com/errata/RHSA-2025:10378
https://access.redhat.com/errata/RHSA-2025:10381
https://access.redhat.com/errata/RHSA-2025:10410
https://access.redhat.com/errata/RHSA-2025:9303
https://access.redhat.com/errata/RHSA-2025:9304
https://access.redhat.com/errata/RHSA-2025:9305
https://access.redhat.com/errata/RHSA-2025:9306
https://access.redhat.com/errata/RHSA-2025:9392
https://access.redhat.com/errata/RHSA-2025:9964
https://access.redhat.com/security/cve/CVE-2025-49180
https://bugzilla.redhat.com/show_bug.cgi?id=2369981
https://gitlab.freedesktop.org/xorg/xserver/-/commit/3c3a4b767b16174d3213055947ea7f4f88e10ec6
https://lists.debian.org/debian-lts-announce/2025/06/msg00028.html
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