How severe is CVE-2017-8835?

CVE-2017-8835 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-8835 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 62% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-8835?

CVE-2017-8835 primarily affects Peplink B305hw2 Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-8835?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2017-8835 published?

CVE-2017-8835 was published on 2017-06-05 and last updated on 2026-06-17.

CVE-2017-8835

CVE-2017-8835 is a critical-severity vulnerability in Peplink B305hw2 Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 62% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-89.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 62% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Peplink B305hw2 Firmware
Published: 2017-06-05
Last modified: 2026-06-17

Description

SQL injection exists on Peplink Balance 305, 380, 580, 710, 1350, and 2500 devices with firmware before fw-b305hw2_380hw6_580hw2_710hw3_1350hw2_2500-7.0.1-build2093. An attack vector is the bauth cookie to cgi-bin/MANGA/admin.cgi. One impact is enumeration of user accounts by observing whether a session ID can be retrieved from the sessions database.

Frequently asked questions

What is CVE-2017-8835?: SQL injection exists on Peplink Balance 305, 380, 580, 710, 1350, and 2500 devices with firmware before fw-b305hw2_380hw6_580hw2_710hw3_1350hw2_2500-7.0.1-build2093. An attack vector is the bauth cookie to cgi-bin/MANGA/admin.cgi. One impact is enumeration of user accounts by observing whether a session ID can be retrieved from the sessions database.
How severe is CVE-2017-8835?: CVE-2017-8835 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-8835 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 62% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-8835?: CVE-2017-8835 primarily affects Peplink B305hw2 Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-8835?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2017-8835 published?: CVE-2017-8835 was published on 2017-06-05 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:o:peplink:b305hw2_firmware:7.0.1:*:*:*:*:*:*:*
cpe:2.3:o:peplink:380hw6_firmware:7.0.1:*:*:*:*:*:*:*
cpe:2.3:o:peplink:580hw2_firmware:7.0.1:*:*:*:*:*:*:*
cpe:2.3:o:peplink:710hw3_firmware:7.0.1:*:*:*:*:*:*:*
cpe:2.3:o:peplink:1350hw2_firmware:7.0.1:*:*:*:*:*:*:*
cpe:2.3:o:peplink:2500_firmware:7.0.1:*:*:*:*:*:*:*

More vulnerabilities in Peplink B305hw2 Firmware

CVE-2017-8837 — Critical (CVSS 9.8): Cleartext password storage exists on Peplink Balance 305, 380, 580, 710, 1350, and 2500 devices with firmware before…
CVE-2017-8836 — High (CVSS 8.8): CSRF exists on Peplink Balance 305, 380, 580, 710, 1350, and 2500 devices with firmware before…
CVE-2017-8841 — High (CVSS 8.1): Arbitrary file deletion exists on Peplink Balance 305, 380, 580, 710, 1350, and 2500 devices with firmware before…
CVE-2017-8839 — Medium (CVSS 6.1): XSS via orig_url exists on Peplink Balance 305, 380, 580, 710, 1350, and 2500 devices with firmware before…
CVE-2017-8838 — Medium (CVSS 6.1): XSS via syncid exists on Peplink Balance 305, 380, 580, 710, 1350, and 2500 devices with firmware before…
CVE-2017-8840 — Medium (CVSS 5.3): Debug information disclosure exists on Peplink Balance 305, 380, 580, 710, 1350, and 2500 devices with firmware before…

All CVEs affecting Peplink B305hw2 Firmware →

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