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CVE-1999-1277

14
FAUCET Score

CVE-1999-1277 describes a vulnerability in the BackWeb client where proxy authentication credentials (username and password) are stored in cleartext within the Communication registry key. This allows local users to potentially gain privileges by reading the stored password. With a CVSS score of 4.6 (Medium), this vulnerability has a local attack vector and low attack complexity, leading to potential compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) or significant community discussion has been identified.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:a:backweb_technologies:backweb_client:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.6MEDIUM

AV:L/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.32%
Probability of exploitation in next 30 days
EPSS Percentile
23.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0032 is in the 31st percentile among its peer group of 3,049 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

marc.info
exchange.xforce.ibmcloud.com / vulnerabilities/1565