Out-of-bounds read in Arista EOS
Priority LOW 34CWE-125Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.
Summary
On affected platforms running Arista EOS with mirroring to multiple destinations configured, an internal system error may trigger a kernel panic and cause system reload.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00674 52nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
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 |
|---|---|---|---|---|---|
| Arista | EOS | 4.28.2F – 4.28.5.1M ; 4.29.0 – 4.29.1F | — | No fix listed | CNA |
- EOS VendorArista Affected 4.28.2F – 4.28.5.1M ; 4.29.0 – 4.29.1F Fixed in — No fix listed CNA
CPE configurations NVD · 47
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* | 4.28.2f – 4.28.5.1m; 4.29.0 to before 4.29.2f | Vulnerable | Arista |
| cpe:2.3:h:arista:7280cr3-32d4:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7280cr3-32p4:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7280cr3-36s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7280cr3-96:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7280cr3a-24d12:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7280cr3a-48d6:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7280cr3a-72:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7280dr3-24:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7280dr3a-36:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
- cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* Versions 4.28.2f – 4.28.5.1m; 4.29.0 to before 4.29.2f Vulnerable ·Arista
- cpe:2.3:h:arista:7280cr3-32d4:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7280cr3-32p4:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7280cr3-36s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7280cr3-96:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7280cr3a-24d12:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7280cr3a-48d6:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7280cr3a-72:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7280dr3-24:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7280dr3a-36:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
Show 37 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:arista:7280dr3a-54:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7280dr3ak-36:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7280dr3ak-54:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7280dr3am-36:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7280dr3am-54:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7280pr3-24:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7280r3:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7280sr3-40yc6:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7280sr3-48yc8:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7280tr3-40c6:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7289r3a-sc:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7289r3ak-sc:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7289r3am-sc:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7500r3-24d:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7500r3-24p:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7500r3-36cq:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7500r3k-36cq:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7500r3k-48y4d:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7504r3:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7508r3:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7512r3:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7800r3-36d:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7800r3-36p:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7800r3-48cq:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7800r3a-36d:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7800r3a-36dm:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7800r3a-36p:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7800r3a-36pm:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7800r3ak-36dm:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7800r3ak-36pm:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7800r3k-36dm:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7800r3k-48cq:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7800r3k-48cqms:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7800r3k-72y7512r3:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7808r3:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7812r3:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
| cpe:2.3:h:arista:7816r3:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Arista |
- cpe:2.3:h:arista:7280dr3a-54:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7280dr3ak-36:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7280dr3ak-54:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7280dr3am-36:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7280dr3am-54:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7280pr3-24:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7280r3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7280sr3-40yc6:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7280sr3-48yc8:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7280tr3-40c6:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7289r3a-sc:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7289r3ak-sc:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7289r3am-sc:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7500r3-24d:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7500r3-24p:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7500r3-36cq:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7500r3k-36cq:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7500r3k-48y4d:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7504r3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7508r3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7512r3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7800r3-36d:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7800r3-36p:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7800r3-48cq:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7800r3a-36d:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7800r3a-36dm:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7800r3a-36p:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7800r3a-36pm:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7800r3ak-36dm:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7800r3ak-36pm:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7800r3k-36dm:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7800r3k-48cq:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7800r3k-48cqms:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7800r3k-72y7512r3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7808r3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7812r3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
- cpe:2.3:h:arista:7816r3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Arista
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-3646
- 2026-10-03 Alias added: GHSA-mxrc-xx6x-q2cc
References
More Arista Eos vulnerabilities
- TI-2014-05975 GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed… KEVCVSS 3.1CRITICAL 9.8
- TI-2014-05157 GNU Bash through 4.3 processes trailing strings after function definitions in the values… KEVCVSS 3.1CRITICAL 9.8
- TI-2026-06569 Arista EOS Unexpected Tunnel Protocol Decapsulation and Forwarding Bypass KEVCVSS 4.0MEDIUM 6.9
- TI-2017-10594 Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a… CVSS 3.1CRITICAL 9.8
- TI-2024-05929 Openssh: regresshion - race condition in ssh allows rce/dos CVSS 3.1HIGH 8.1
- TI-2020-08209 utility.c in telnetd in netkit telnet through 0.17 allows remote attackers to execute… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2023-3646 · CVE Program
- CVE-2023-3646 · NVD
- FIRST EPSS
- GHSA-mxrc-xx6x-q2cc · 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