net-snmp up to 5.7.3 link following

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.5$0-$5k0.00

Summaryinfo

A vulnerability was found in net-snmp up to 5.7.3. It has been declared as critical. The impacted element is an unknown function. The manipulation results in link following. This vulnerability was named CVE-2020-15861. The attack needs to be approached locally. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as critical, was found in net-snmp up to 5.7.3 (Network Management Software). Affected is some unknown processing. The manipulation with an unknown input leads to a link following vulnerability. CWE is classifying the issue as CWE-59. The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Net-SNMP through 5.7.3 allows Escalation of Privileges because of UNIX symbolic link (symlink) following.

The weakness was presented 08/20/2020 (Website). The advisory is shared for download at bugs.debian.org. This vulnerability is traded as CVE-2020-15861 since 07/20/2020. The exploitability is told to be easy. The attack needs to be approached locally. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 04/29/2026).

The vulnerability scanner Nessus provides a plugin with the ID 310756 (Juniper Junos OS Multiple Vulnerabilities (JSA82973)), 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 vulnerability database at Tenable (310756). See VDB-160069 for similar entry. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

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

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Link following
CWE: CWE-59
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 310756
Nessus Name: Juniper Junos OS Multiple Vulnerabilities (JSA82973)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/20/2020 🔍
08/20/2020 +31 days 🔍
08/20/2020 +0 days 🔍
04/29/2026 +2078 days 🔍

Sourcesinfo

Advisory: bugs.debian.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2020-15861 (🔍)
GCVE (CVE): GCVE-0-2020-15861
GCVE (VulDB): GCVE-100-160068
See also: 🔍

Entryinfo

Created: 08/20/2020 20:31
Updated: 04/29/2026 16:28
Changes: 08/20/2020 20:31 (36), 08/20/2020 20:36 (18), 11/10/2020 14:58 (1), 12/03/2025 21:18 (16), 04/29/2026 16:28 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!