CVE-2025-37937 | objtool, media: dib8000: Prevent divide-by-zero in dib8000_set_dds()

In the Linux kernel, the following vulnerability has been resolved: objtool, media: dib8000: Prevent divide-by-zero in dib8000_set_dds() If dib8000_set_dds()'s call to dib8000_read32() returns zero, the result is a divide-by-zero. Prevent that from happening. Fixes the following warning with an UBSAN kernel: drivers/media/dvb-frontends/dib8000.o: warning: objtool: dib8000_tune() falls through to next function dib8096p_cfg_DibRx()

Published: 2025-05-20 Last update: 2025-12-19 Assigner: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-37937 is rated Low Risk (29.1/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.07%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-2025-37937

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 2026-03-16 0.02% 0.07% +0.05%
2 2025-12-20 0.06% 0.02% -0.04%
3 2025-11-28 — 0.06% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-37937

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 3.6 [email protected]

Weakness enumeration for CVE-2025-37937

OS Trackers for CVE-2025-37937

vendor priority summary link
debian not yet assigned CVE-2025-37937 not yet assigned priority: Debian including 2 source packages (linux, linux-6.1), 6 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 6. https://security-tracker.debian.org/tracker/CVE-2025-37937
redhat low — https://access.redhat.com/security/cve/CVE-2025-37937
suse medium — https://www.suse.com/security/cve/CVE-2025-37937/
ubuntu medium CVE-2025-37937 medium priority: Ubuntu including 158 source packages (linux, linux-allwinner-5.19, …), 1551 status rows across 10 suites (bionic, focal, jammy, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 1145, released 200, ignored 153, not-affected 31, needed 20, needs-triage 2. https://ubuntu.com/security/CVE-2025-37937

Affected software / configurations for CVE-2025-37937

Vendor Product Version Raw CPE
linux linux_kernel >= 3.10, < 5.4.292 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 5.5, < 5.10.236 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 5.11, < 5.15.180 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 5.16, < 6.1.134 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 6.2, < 6.6.87 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 6.7, < 6.12.23 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 6.13, < 6.13.11 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 6.14, < 6.14.2 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
debian debian_linux 11.0 cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

References for CVE-2025-37937

URL Tags
https://git.kernel.org/stable/c/536f7f3595ef8187cfa9ea50d7d24fcf4e84e166 Patch
https://git.kernel.org/stable/c/6cfe46036b163e5a0f07c6b705b518148e1a8b2f Patch
https://git.kernel.org/stable/c/75b42dfe87657ede3da3f279bd6b1b16d69af954 Patch
https://git.kernel.org/stable/c/976a85782246a29ba0f6d411a7a4f524cb9ea987 Patch
https://git.kernel.org/stable/c/9b76b198cf209797abcb1314c18ddeb90fe0827b Patch
https://git.kernel.org/stable/c/b9249da6b0ed56269d4f21850df8e5b35dab50bd Patch
https://git.kernel.org/stable/c/c8430e72b99936c206b37a8e2daebb3f8df7f2d8 Patch
https://git.kernel.org/stable/c/cd80277f652138d2619f149f86ae6d17bce721d1 Patch
https://git.kernel.org/stable/c/e63d465f59011dede0a0f1d21718b59a64c3ff5c Patch
https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html Third Party Advisory
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