How severe is CVE-2026-9105?

CVE-2026-9105 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-9105 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-9105?

CVE-2026-9105 affects Tp-link Tl-wr841n Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-9105?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-9105 published?

CVE-2026-9105 was published on 2026-06-29 and last updated on 2026-07-01.

CVE-2026-9105

CVE-2026-9105 is a medium-severity vulnerability in Tp-link Tl-wr841n Firmware with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 6.8
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Tp-link Tl-wr841n Firmware
Published: 2026-06-29
Last modified: 2026-07-01

Description

An authenticated stack-based buffer overflow vulnerability exists in the web management interface of TP-Link TL-WR841N v14. A remote authenticated attacker can send crafted HTTP requests to cause the embedded web server to overflow a stack buffer, resulting in a crash of the affected process. Successful exploitation results in a denial-of-service condition, causing the device to crash and automatically reboot.

Frequently asked questions

What is CVE-2026-9105?: An authenticated stack-based buffer overflow vulnerability exists in the web management interface of TP-Link TL-WR841N v14. A remote authenticated attacker can send crafted HTTP requests to cause the embedded web server to overflow a stack buffer, resulting in a crash of the affected process. Successful exploitation results in a denial-of-service condition, causing the device to crash and automatically reboot.
How severe is CVE-2026-9105?: CVE-2026-9105 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-9105 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-9105?: CVE-2026-9105 affects Tp-link Tl-wr841n Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-9105?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-9105 published?: CVE-2026-9105 was published on 2026-06-29 and last updated on 2026-07-01.

References

Affected products (1)

cpe:2.3:o:tp-link:tl-wr841n_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Tp-link Tl-wr841n Firmware

CVE-2022-25073 — Critical (CVSS 9.8): TL-WR841Nv14_US_0.9.1_4.18 routers were discovered to contain a stack overflow in the function dm_fillObjByStr(). This…
CVE-2018-12575 — Critical (CVSS 9.8): On TP-Link TL-WR841N v13 00000001 0.9.1 4.16 v0001.0 Build 171019 Rel.55346n devices, all actions in the web interface…
CVE-2018-11714 — Critical (CVSS 9.8): An issue was discovered on TP-Link TL-WR840N v5 00000005 0.9.1 3.16 v0001.0 Build 170608 Rel.58696n and TL-WR841N v13…
CVE-2026-5039 — High (CVSS 8.8): TP-Link TL-WR841N v13 uses DES-CBC encryption in the TDDPv2 debug protocol with a cryptographic key derived from…
CVE-2023-39471 — High (CVSS 8.8): TP-Link TL-WR841N ated_tp Command Injection Remote Code Execution Vulnerability. This vulnerability allows…
CVE-2023-36489 — High (CVSS 8.8): Multiple TP-LINK products allow a network-adjacent unauthenticated attacker to execute arbitrary OS commands. Affected…

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