How severe is CVE-2021-29302?

CVE-2021-29302 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-29302 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-29302?

CVE-2021-29302 affects Tp-link Tl-wr802n Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-29302?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-29302 published?

CVE-2021-29302 was published on 2021-04-12 and last updated on 2026-06-17.

CVE-2021-29302

CVE-2021-29302 is a high-severity vulnerability in Tp-link Tl-wr802n Firmware with a CVSS 3.x base score of 8.1. 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-120.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 9.3
EPSS exploit prediction: 6% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Tp-link Tl-wr802n Firmware
Published: 2021-04-12
Last modified: 2026-06-17

Description

TP-Link TL-WR802N(US), Archer_C50v5_US v4_200 <= 2020.06 contains a buffer overflow vulnerability in the httpd process in the body message. The attack vector is: The attacker can get shell of the router by sending a message through the network, which may lead to remote code execution.

Frequently asked questions

What is CVE-2021-29302?: TP-Link TL-WR802N(US), Archer_C50v5_US v4_200 <= 2020.06 contains a buffer overflow vulnerability in the httpd process in the body message. The attack vector is: The attacker can get shell of the router by sending a message through the network, which may lead to remote code execution.
How severe is CVE-2021-29302?: CVE-2021-29302 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-29302 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-29302?: CVE-2021-29302 affects Tp-link Tl-wr802n Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-29302?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-29302 published?: CVE-2021-29302 was published on 2021-04-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tp-link:tl-wr802n_firmware:*:*:*:*:*:*:*:*

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