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CVE-2012-4879

29
FAUCET Score

CVE-2012-4879 describes a critical vulnerability in WAGO I/O System 758 Industrial PC devices, specifically models 758-870, 758-874, 758-875, and 758-876. The vulnerability stems from the use of easily guessable default passwords (wago for root/admin, user for user, guest for guest) for the Linux Console, allowing unauthorized remote access via TELNET. With a CVSS score of 10.0, this flaw presents a severe risk, enabling unauthenticated attackers to gain complete control over affected systems due to its network-based attack vector and low complexity. Despite its high severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
758-870CPE matchmatch criteria
cpe:2.3:h:wago:wago_i\/o_system_758_industrial_pc_device:758-870:*:*:*:*:*:*:*
758-874CPE matchmatch criteria
cpe:2.3:h:wago:wago_i\/o_system_758_industrial_pc_device:758-874:*:*:*:*:*:*:*
758-875CPE matchmatch criteria
cpe:2.3:h:wago:wago_i\/o_system_758_industrial_pc_device:758-875:*:*:*:*:*:*:*
758-876CPE matchmatch criteria
cpe:2.3:h:wago:wago_i\/o_system_758_industrial_pc_device:758-876:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.15%
Probability of exploitation in next 30 days
EPSS Percentile
86.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0315 is in the 76th percentile among its peer group of 51,455 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

us-cert.gov / control_systems/pdf/ICSA-12-249-02.pdf
US Government Resource
wago.com / wagoweb/documentation/app_note/a1176/a117600e.pdf
Vendor Advisory