CVE-2019-9231

Severity: high (CVSS 8.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-07-18 · updated 2026-06-17
Weakness: CWE-352

Description

An issue was discovered on AudioCodes Mediant 500L-MSBR, 500-MBSR, M800B-MSBR and 800C-MSBR devices with firmware versions before 7.20A.202.307. A Cross-Site Request Forgery (CSRF) vulnerability in the management web interface allows remote attackers to execute malicious and unauthorized actions, because CSRFProtection=1 is not a default and is not documented.

Affected products

Audiocodes Mediant 500-Mbsr Firmware: from f7.20a before f7.20a.202.307 — fixed in f7.20a.202.307
Audiocodes Mediant 500L-Msbr Firmware: from f7.20a before f7.20a.202.307 — fixed in f7.20a.202.307
Audiocodes Mediant 800C-Msbr Firmware: from f7.20a before f7.20a.202.307 — fixed in f7.20a.202.307
Audiocodes Mediant M800B-Msbr Firmware: from f7.20a before f7.20a.202.307 — fixed in f7.20a.202.307

How to fix

Upgrade to a fixed version: Audiocodes Mediant 500-Mbsr Firmware f7.20a.202.307; Audiocodes Mediant 500L-Msbr Firmware f7.20a.202.307; Audiocodes Mediant 800C-Msbr Firmware f7.20a.202.307; Audiocodes Mediant M800B-Msbr Firmware f7.20a.202.307. Check the vendor advisory for mitigations.

References

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