CVE-2021-25159
CVE-2021-25159 is a medium-severity vulnerability in Arubanetworks Instant with a CVSS 3.x base score of 6.5. Its EPSS exploit-prediction score of 13% places it in the 96th percentile, indicating an elevated likelihood of exploitation.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- CVSS v2: 8.5
- EPSS exploit prediction: 13% (96th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Arubanetworks Instant
- Published:
- Last modified:
Description
A remote arbitrary file modification vulnerability was discovered in some Aruba Instant Access Point (IAP) products in version(s): Aruba Instant 6.4.x: 6.4.4.8-4.2.4.17 and below; Aruba Instant 6.5.x: 6.5.4.18 and below; Aruba Instant 8.3.x: 8.3.0.14 and below; Aruba Instant 8.5.x: 8.5.0.11 and below; Aruba Instant 8.6.x: 8.6.0.7 and below; Aruba Instant 8.7.x: 8.7.1.1 and below. Aruba has released patches for Aruba Instant that address this security vulnerability.
Frequently asked questions
- What is CVE-2021-25159?
- A remote arbitrary file modification vulnerability was discovered in some Aruba Instant Access Point (IAP) products in version(s): Aruba Instant 6.4.x: 6.4.4.8-4.2.4.17 and below; Aruba Instant 6.5.x: 6.5.4.18 and below; Aruba Instant 8.3.x: 8.3.0.14 and below; Aruba Instant 8.5.x: 8.5.0.11 and below; Aruba Instant 8.6.x: 8.6.0.7 and below; Aruba Instant 8.7.x: 8.7.1.1 and below. Aruba has released patches for Aruba Instant that address this security vulnerability.
- How severe is CVE-2021-25159?
- CVE-2021-25159 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
- Is CVE-2021-25159 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-25159?
- CVE-2021-25159 primarily affects Arubanetworks Instant. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2021-25159?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-25159 published?
- CVE-2021-25159 was published on 2021-03-30 and last updated on 2026-06-17.
References
- http://packetstormsecurity.com/files/163522/Aruba-Instant-IAP-Remote-Code-Execution.html
- https://cert-portal.siemens.com/productcert/pdf/ssa-723417.pdf
- https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2021-007.txt
Affected products (2)
- cpe:2.3:o:arubanetworks:instant:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_w1750d_firmware:*:*:*:*:*:*:*:*
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