NTP 4.2.8p15 libntp/mstolfp.c mstolfp 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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5.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in NTP 4.2.8p15. Impacted is the function mstolfp of the file libntp/mstolfp.c. Performing a manipulation results in out-of-bounds write. This vulnerability is identified as CVE-2023-26554. There is not any exploit available.

Detailsinfo

A vulnerability was found in NTP 4.2.8p15 (Network Management Software). It has been classified as critical. This affects the function mstolfp of the file libntp/mstolfp.c. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

mstolfp in libntp/mstolfp.c in NTP 4.2.8p15 has an out-of-bounds write when adding a '\0' character.

The weakness was released 04/12/2023. The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2023-26554 since 02/25/2023. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 310772 (Juniper Junos OS Multiple Vulnerabilities (JSA73177)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (310772) and EUVD (EUVD-2023-30351). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.6
NVD Vector: 🔍

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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Nessus ID: 310772
Nessus Name: Juniper Junos OS Multiple Vulnerabilities (JSA73177)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/25/2023 🔍
04/12/2023 +45 days 🔍
04/12/2023 +0 days 🔍
04/29/2026 +1113 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2023-26554 (🔍)
GCVE (CVE): GCVE-0-2023-26554
GCVE (VulDB): GCVE-100-225681
EUVD: 🔍

Entryinfo

Created: 04/12/2023 07:34
Updated: 04/29/2026 12:03
Changes: 04/12/2023 07:34 (39), 02/12/2025 02:05 (25), 11/10/2025 01:05 (1), 04/29/2026 12:03 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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