CVE-2025-10773: A security flaw has been discovered in B-Link BL-AC2100 up to 1.0.3

Q: How do I fix CVE-2025-10773?

bl-ac2100 firmware: upgrade to newer than 1.0.3. Exact commands for each OS are on this page.

Q: Is CVE-2025-10773 being exploited?

CVE-2025-10773 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-10773 affect?

CVE-2025-10773 affects bl-ac2100 firmware. Severity is high (CVSS 8.8). A security flaw has been discovered in B-Link BL-AC2100 up to 1.0.3. Affected by this issue is the function delshrpath of the file /goform/set_delshrpath_cfg of the component Web Management Interface. The manipulation of the argument Type r

Q: How urgent is CVE-2025-10773?

Priority 59/100. High severity; EPSS top 9%: very likely to be exploited; Public exploit reference

This month

HIGH 8.8UPGRADE

CVE-2025-10773 is a high-severity flaw (CVSS 8.8) affecting bl-ac2100 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A security flaw has been discovered in B-Link BL-AC2100 up to 1.0.3. Affected by this issue is the function delshrpath of the file /goform/set_delshrpath_cfg of the component Web Management Interface. The manipulation of the argument Type results in stack-based buffer overflow. The attack may be performed from remote. The exploit has been released to the public and may be exploited. The vendor was contacted early about this disclosure but did not

Why this priority

High severity
EPSS top 9%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	4.2% (top 9%)
CISA exploited list	No
Weakness	CWE-119, CWE-121, CWE-787
Published	2025-09-22
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: lb-link

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-09-22 01:15 UTCPublished CVE record published
2026-06-17 08:28 UTCUpdated Record last modified

lb-link bl-ac2100 firmware UPGRADE

Affected: <= 1.0.3

Fixed in: newer than 1.0.3

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Exact fixes by distribution

Fedora 46 · wordpress · FIXED · 7.1.4-1.fc46 · FEDORA-2026-907394725e · source

sudo dnf upgrade --advisory=FEDORA-2026-907394725e

Fedora ELN · rhc · FIXED · 0.3.15-1.eln159 · FEDORA-2026-1cd9f35750 · source

sudo dnf upgrade --advisory=FEDORA-2026-1cd9f35750

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: github.com/maximdevere/CVE2/blob/main/README.md

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-10773?

bl-ac2100 firmware: upgrade to newer than 1.0.3. Exact commands for each OS are on this page.

Is CVE-2025-10773 being exploited?

CVE-2025-10773 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-10773 affect?

CVE-2025-10773 affects bl-ac2100 firmware. Severity is high (CVSS 8.8). A security flaw has been discovered in B-Link BL-AC2100 up to 1.0.3. Affected by this issue is the function delshrpath of the file /goform/set_delshrpath_cfg of the component Web Management Interface. The manipulation of the argument Type r

How urgent is CVE-2025-10773?

Priority 59/100. High severity; EPSS top 9%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2025-29063 CRITICAL 9.8 UPGRADE An issue in BL-AC2100 V1.0.4 and before allows a remote attacker to execute arbitrary code via the enable para
CVE-2025-29062 CRITICAL 9.8 UPGRADE An issue in BL-AC2100 <=V1.0.4 allows a remote attacker to execute arbitrary code via the time1 and time2 para

References

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