CVE-2011-1324

CVE-2011-1324 is a medium-severity vulnerability in Buffalotech Bbr-4hg Firmware with a CVSS 2.0 base score of 5.8. 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-352.

Key facts

• Severity: Medium (CVSS 2.0 base score 5.8)
• EPSS exploit prediction: 0% (38th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-352
• Affected product: Buffalotech Bbr-4hg Firmware
• Published: 2011-05-09
• Last modified: 2026-06-16

Description

Multiple cross-site request forgery (CSRF) vulnerabilities in the management screen on Buffalo WHR, WZR2, WZR, WER, and BBR series routers with firmware 1.x; BHR-4RV and FS-G54 routers with firmware 2.x; and AS-100 routers allow remote attackers to hijack the authentication of administrators for requests that modify settings, as demonstrated by changing the login password.

Frequently asked questions

What is CVE-2011-1324?

Multiple cross-site request forgery (CSRF) vulnerabilities in the management screen on Buffalo WHR, WZR2, WZR, WER, and BBR series routers with firmware 1.x; BHR-4RV and FS-G54 routers with firmware 2.x; and AS-100 routers allow remote attackers to hijack the authentication of administrators for requests that modify settings, as demonstrated by changing the login password.

How severe is CVE-2011-1324?

CVE-2011-1324 has a CVSS 2.0 base score of 5.8, rated medium severity.

Is CVE-2011-1324 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-1324?

CVE-2011-1324 primarily affects Buffalotech Bbr-4hg Firmware. In total, 118 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-1324?

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

When was CVE-2011-1324 published?

CVE-2011-1324 was published on 2011-05-09 and last updated on 2026-06-16.

References

• http://buffalo.jp/support_s/20080808/csrf.html
• http://jvn.jp/en/jp/JVN50505257/index.html

Affected products (118)

• cpe:2.3:a:buffalotech:bbr-4hg_firmware:1.02:*:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4hg_firmware:1.04:*:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4hg_firmware:1.04:beta:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4hg_firmware:1.10:*:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4hg_firmware:1.10:beta:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4hg_firmware:1.11:beta:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4hg_firmware:1.12:*:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4hg_firmware:1.20:*:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4hg_firmware:1.20:beta:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4hg_firmware:1.30:*:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4hg_firmware:1.30:beta:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4hg_firmware:1.31:*:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4hg_firmware:1.32:*:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4hg_firmware:1.32:beta:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4hg_firmware:1.33:beta:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4mg_firmware:1.00:*:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4mg_firmware:1.01:beta:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4mg_firmware:1.03:*:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4mg_firmware:1.04:*:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4mg_firmware:1.04:beta:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4mg_firmware:1.10:*:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4mg_firmware:1.10:beta:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4mg_firmware:1.11:beta:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4mg_firmware:1.12:*:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4mg_firmware:1.20:*:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4mg_firmware:1.20:beta:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4mg_firmware:1.30:*:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4mg_firmware:1.30:beta:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4mg_firmware:1.31:*:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4mg_firmware:1.32:*:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4mg_firmware:1.32:beta:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4mg_firmware:1.33:*:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bbr-4mg_firmware:1.33:beta:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bhr-4rv_firmware:2.31:*:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bhr-4rv_firmware:2.32:prebeta:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bhr-4rv_firmware:2.33:prebeta:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bhr-4rv_firmware:2.42:*:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bhr-4rv_firmware:2.46:*:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:bhr-4rv_firmware:2.48:*:*:*:*:*:*:*
• cpe:2.3:a:buffalotech:fs-g54_firmware:2.07:*:*:*:*:*:*:*

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