MikroTik RouterOS up to 6.49.9 Web Server out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability was found in MikroTik RouterOS up to 6.49.9 and classified as critical. This impacts an unknown function of the component Web Server. Such manipulation leads to out-of-bounds write. This vulnerability is listed as CVE-2023-30800. The attack may be performed from remote. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in MikroTik RouterOS up to 6.49.9 (Router Operating System). It has been rated as critical. Affected by this issue is an unknown code of the component Web Server. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is availability. CVE summarizes:

The web server used by MikroTik RouterOS version 6 is affected by a heap memory corruption issue. A remote and unauthenticated attacker can corrupt the server's heap memory by sending a crafted HTTP request. As a result, the web interface crashes and is immediately restarted. The issue was fixed in RouterOS 6.49.10 stable. RouterOS version 7 is not affected.

The weakness was presented 09/07/2023. The advisory is available at vulncheck.com. This vulnerability is handled as CVE-2023-30800 since 04/18/2023. The technical details are unknown and an exploit is not available.

Upgrading to version 6.49.10 or 7.0 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.7

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector (VulnCheck): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: RouterOS 6.49.10/7.0

Timelineinfo

04/18/2023 🔍
09/07/2023 +142 days 🔍
09/07/2023 +0 days 🔍
11/21/2025 +806 days 🔍

Sourcesinfo

Advisory: vulncheck.com
Status: Confirmed

CVE: CVE-2023-30800 (🔍)
GCVE (CVE): GCVE-0-2023-30800
GCVE (VulDB): GCVE-100-239138

Entryinfo

Created: 09/07/2023 23:20
Updated: 11/21/2025 18:49
Changes: 09/07/2023 23:20 (51), 11/21/2025 18:49 (27)
Complete: 🔍
Cache ID: 216::103

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