Arista EOS 4.33.2F ACL Policy improper validation of specified quantity in input

CVSS Meta Temp Score
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Current Exploit Price (≈)
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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.
2.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Arista EOS 4.33.2F. Affected by this issue is some unknown functionality of the component ACL Policy Handler. The manipulation results in improper validation of specified quantity in input. This vulnerability is known as CVE-2025-2826. Access to the local network is required for this attack. No exploit is available.

Detailsinfo

A vulnerability classified as problematic has been found in Arista EOS 4.33.2F. Affected is some unknown functionality of the component ACL Policy Handler. The manipulation with an unknown input leads to a improper validation of specified quantity in input vulnerability. CWE is classifying the issue as CWE-1284. The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties. This is going to have an impact on integrity. CVE summarizes:

n affected platforms running Arista EOS, ACL policies may not be enforced. IPv4 ingress ACL, MAC ingress ACL, or IPv6 standard ingress ACL enabled on one or more ethernet or LAG interfaces may result in ACL policies not being enforced for ingress packets. This can cause incoming packets to incorrectly be allowed or denied. The two symptoms of this issue on the affected release and platform are: * Packets which should be permitted may be dropped and, * Packets which should be dropped may be permitted.

The advisory is available at arista.com. This vulnerability is traded as CVE-2025-2826 since 03/26/2025. The exploitability is told to be difficult. The attack can only be initiated within the local network. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 05/28/2025).

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

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

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.6
VulDB Meta Temp Score: 2.6

VulDB Base Score: 2.6
VulDB Temp Score: 2.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 2.6
CNA Vector (Arista): 🔍

CVSSv2info

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

Exploitinginfo

Class: Improper validation of specified quantity in input
CWE: CWE-1284 / CWE-703
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/26/2025 🔍
05/28/2025 +62 days 🔍
05/28/2025 +0 days 🔍
05/28/2025 +0 days 🔍

Sourcesinfo

Advisory: arista.com
Status: Confirmed

CVE: CVE-2025-2826 (🔍)
GCVE (CVE): GCVE-0-2025-2826
GCVE (VulDB): GCVE-100-310410

Entryinfo

Created: 05/28/2025 07:23
Changes: 05/28/2025 07:23 (61)
Complete: 🔍
Cache ID: 216::103

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

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