An issue was discovered on AudioCodes Mediant 500L-MSBR, 500-MBSR, M800B-MSBR and…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
An issue was discovered on AudioCodes Mediant 500L-MSBR, 500-MBSR, M800B-MSBR and 800C-MSBR devices with firmware versions F7.20A at least to 7.20A.252.062. The (1) management SSH and (2) management TELNET features allow remote attackers to cause a denial of service (connection slot exhaustion) via 5 unauthenticated connection attempts, because the maximum number of unauthenticated clients that can be configured is 5. NOTE: the vendor's position is that this is a "design choice.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:audiocodes:median_500l-msbr_firmware:*:*:*:*:*:*:*:* | f7.20a – f7.20a.252.062 | Vulnerable | AudioCodes Limited |
| cpe:2.3:h:audiocodes:median_500l-msbr:-:*:*:*:*:*:*:* | not specified by NVD | Running on | AudioCodes Limited |
| cpe:2.3:o:audiocodes:median_500-msbr_firmware:*:*:*:*:*:*:*:* | f7.20a – f7.20a.252.062 | Vulnerable | AudioCodes Limited |
| cpe:2.3:h:audiocodes:median_500-msbr:-:*:*:*:*:*:*:* | not specified by NVD | Running on | AudioCodes Limited |
| cpe:2.3:o:audiocodes:median_m800b-msbr_firmware:*:*:*:*:*:*:*:* | f7.20a – f7.20a.252.062 | Vulnerable | AudioCodes Limited |
| cpe:2.3:h:audiocodes:median_m800b-msbr:-:*:*:*:*:*:*:* | not specified by NVD | Running on | AudioCodes Limited |
| cpe:2.3:o:audiocodes:median_800c-msbr_firmware:*:*:*:*:*:*:*:* | f7.20a – f7.20a.252.062 | Vulnerable | AudioCodes Limited |
| cpe:2.3:h:audiocodes:median_800c-msbr:-:*:*:*:*:*:*:* | not specified by NVD | Running on | AudioCodes Limited |
- cpe:2.3:o:audiocodes:median_500l-msbr_firmware:*:*:*:*:*:*:*:* Versions f7.20a – f7.20a.252.062 Vulnerable ·AudioCodes Limited
- cpe:2.3:h:audiocodes:median_500l-msbr:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·AudioCodes Limited
- cpe:2.3:o:audiocodes:median_500-msbr_firmware:*:*:*:*:*:*:*:* Versions f7.20a – f7.20a.252.062 Vulnerable ·AudioCodes Limited
- cpe:2.3:h:audiocodes:median_500-msbr:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·AudioCodes Limited
- cpe:2.3:o:audiocodes:median_m800b-msbr_firmware:*:*:*:*:*:*:*:* Versions f7.20a – f7.20a.252.062 Vulnerable ·AudioCodes Limited
- cpe:2.3:h:audiocodes:median_m800b-msbr:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·AudioCodes Limited
- cpe:2.3:o:audiocodes:median_800c-msbr_firmware:*:*:*:*:*:*:*:* Versions f7.20a – f7.20a.252.062 Vulnerable ·AudioCodes Limited
- cpe:2.3:h:audiocodes:median_800c-msbr:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·AudioCodes Limited
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-9228
- 2026-10-03 Alias added: GHSA-8844-xm63-xpv5
References
More AudioCodes Limited Median 500-msbr Firmware vulnerabilities
- TI-2019-06684 An issue was discovered on AudioCodes Mediant 500L-MSBR, 500-MBSR, M800B-MSBR and… CVSS 3.0HIGH 8.8
Sources
- CVE-2019-9228 · CVE Program
- CVE-2019-9228 · NVD
- FIRST EPSS
- GHSA-8844-xm63-xpv5 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences