CVE-2015-2881: Gynoii has a password of guest for the backdoor guest account and a password of 12345 for the backdoor admin a

This week

CRITICAL 9.8REMOTEMITIGATEMITIGATEMITIGATE

CVE-2015-2881 is a critical-severity flaw (CVSS 9.8) affecting gcw-1010, gcw-1020, gpw-1025. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Gynoii has a password of guest for the backdoor guest account and a password of 12345 for the backdoor admin account.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.6% (top 25%)
CISA exploited list	No
Weakness	CWE-798
Published	2017-04-10
Last modified	2026-06-17

Publisher (CNA): CERT/CC · Vendor: gynoii

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2017-04-10 03:59 UTCPublished CVE record published
2026-06-17 00:24 UTCUpdated Record last modified

gynoii gcw-1010 MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Firmware

Install the latest firmware from the vendor advisory; if none, apply the vendor workaround.

gynoii gcw-1020 MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Firmware

Install the latest firmware from the vendor advisory; if none, apply the vendor workaround.

gynoii gpw-1025 MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Firmware

Install the latest firmware from the vendor advisory; if none, apply the vendor workaround.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2015-2881?

gcw-1010: mitigate or apply the listed mitigation; gcw-1020: mitigate or apply the listed mitigation; gpw-1025: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2015-2881 being exploited?

CVE-2015-2881 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2015-2881 affect?

CVE-2015-2881 affects gcw-1010, gcw-1020, gpw-1025. Severity is critical (CVSS 9.8). Gynoii has a password of guest for the backdoor guest account and a password of 12345 for the backdoor admin account.

How urgent is CVE-2015-2881?

Priority 63/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

References

← Back to latest CVEs