What’s Vulnerable › Vulnerabilities

CVE-2021-20857

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-12-01 · updated 2026-06-17
• Weakness: CWE-79

Description

Cross-site scripting vulnerability in ELECOM LAN router WRC-2533GHBK-I firmware v1.20 and prior allows a remote authenticated attacker to inject an arbitrary script via unspecified vectors.

Affected products

• Elecom Wrc-2533Ghbk-I Firmware: through 1.20

References

• https://jvn.jp/en/jp/JVN88993473/index.html
• https://www.elecom.co.jp/news/security/20211130-01/
• https://jvn.jp/en/jp/JVN88993473/index.html
• https://www.elecom.co.jp/news/security/20211130-01/

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