CVE-2019-9231
CVE-2019-9231 is a high-severity vulnerability in Audiocodes Mediant 500l-msbr Firmware with a CVSS 3.x base score of 8.8. 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: High (CVSS 3.x base score 8.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 1% (50th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-352
- Affected product: Audiocodes Mediant 500l-msbr Firmware
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2019-9231?
- 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.
- How severe is CVE-2019-9231?
- CVE-2019-9231 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2019-9231 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2019-9231?
- CVE-2019-9231 primarily affects Audiocodes Mediant 500l-msbr Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2019-9231?
- 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-2019-9231 published?
- CVE-2019-9231 was published on 2019-07-18 and last updated on 2026-06-17.
References
Affected products (4)
- cpe:2.3:o:audiocodes:mediant_500l-msbr_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:audiocodes:mediant_500-mbsr_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:audiocodes:mediant_m800b-msbr_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:audiocodes:mediant_800c-msbr_firmware:*:*:*:*:*:*:*:*
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- CVE-2019-9230 — Medium (CVSS 6.1): An issue was discovered on AudioCodes Mediant 500L-MSBR, 500-MBSR, M800B-MSBR and 800C-MSBR devices with firmware…
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