CVE-1999-0395

A race condition in the BackWeb Polite Agent Protocol allows an attacker to spoof a BackWeb server.

Published: 1999-01-01 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-1999-0395 is rated Moderate Risk (42.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.47%). 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-1999-0395

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 2025-03-17 0.28% 0.47% +0.19%
2 2024-02-08 0.86% 0.28% -0.59%
3 2023-03-20 — 0.86% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-1999-0395

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.1 2.0 MEDIUM
AV:N/AC:H/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:H)
Exploitation requires uncommon or highly specific conditions.
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.
 4.9 6.4 [email protected]

Weakness enumeration for CVE-1999-0395

OS Trackers for CVE-1999-0395

vendor priority summary link
alpine — CVE-1999-0395: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. https://security.alpinelinux.org/vuln/CVE-1999-0395

Affected software / configurations for CVE-1999-0395

Vendor Product Version Raw CPE
backweb_technologies backweb_polite_agent_protocol — cpe:2.3:a:backweb_technologies:backweb_polite_agent_protocol:*:*:*:*:*:*:*:*

References for CVE-1999-0395

cvelogic Threat Intelligence