CVE-2010-0554

The HTTP Authentication implementation in Geo++ GNCASTER 1.4.0.7 and earlier uses the same nonce for all authentication, which allows remote attackers to hijack web sessions or bypass authentication via a replay attack.

Published: 2010-02-04 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2010-0554 is rated Moderate Risk (56.3/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.52%). EPSS rose +1.36% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2010-0554

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.17% 1.52% +1.36%
2 2025-05-31 0.46% 0.17% -0.29%
3 2025-03-30 — 0.46% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2010-0554

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2010-0554

Affected software / configurations for CVE-2010-0554

Vendor Product Version Raw CPE
geopp geo\+\+_gncaster <= 1.4.0.7 cpe:2.3:a:geopp:geo\+\+_gncaster:*:*:*:*:*:*:*:*
geopp geo\+\+_gncaster 1.4.0.0 cpe:2.3:a:geopp:geo\+\+_gncaster:1.4.0.0:*:*:*:*:*:*:*

References for CVE-2010-0554

cvelogic Threat Intelligence