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Infinite LoopWeakness · CWE-835

CVE-2026-24804

CRITICAL · 9.2 CVSS v4.0 Published 2026-01-27
Patch available
A vendor patch is available. No clean upgrade release — apply the published patch.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click Patch available

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in coolsnowwolf lede (package/lean/mt/drivers/mt7603e/src/mt7603_wifi/common modules). This vulnerability is associated with program files bn_lib.C. This issue affects lede: through r25.10.1.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis
How this class of weakness works · CWE-835

Crafted input drives a loop whose exit condition is never satisfied, hanging the thread and starving the service of the resource it occupies. A single request can be enough to take a worker down. Remediation is bounding iteration counts and validating the conditions that are supposed to terminate the loop.

General guidance for the infinite loop class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
Authentication
Y
User interaction
None
Scope
N

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:U/V:C/RE:L/U:Amber

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Patch available Apply the vendor patch
Vendor patch github.com →
Recommended fix Moderate confidence

Any LEDE release after r25.10.1 that includes the patched mt7603e driver (mt7603_wifi/common/bn_lib.c)

  1. 1. Identify the LEDE/OpenWrt version currently running on the affected device
  2. 2. Upgrade the firmware to a release newer than r25.10.1 that includes the fix from PR #13368
  3. 3. If using a custom build, ensure the mt7603e driver package is rebuilt with the patched source code from https://github.com/coolsnowwolf/lede/pull/13368
  4. 4. After upgrade, verify the device functions normally and the mt7603 wifi interface initializes without hanging
Caveat The mt7603e driver is specific to MediaTek MT7603E hardware - ensure target device uses this chipset before upgrading

Generated from the published advisory — verify against the referenced sources before acting.

We can apply and verify the patch for your build — typical engagement from $2,300. Get the patch applied

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-24804 in production — separate from our analysis above.

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What this is

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