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CVE-2020-25237

32
FAUCET Score

CVE-2020-25237 is a Zip-Slip vulnerability affecting Siemens SINEC NMS (all versions < V1.0 SP1 Update 1) and SINEMA Server (all versions < V14.0 SP2 Update 2). An authenticated attacker can exploit this by uploading a specially crafted zip file, allowing them to create or overwrite arbitrary files outside the intended directory. With a CVSS score of 8.1 (High), this vulnerability poses a significant risk for integrity and availability compromise, as it can be exploited remotely with low complexity and no user interaction. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.0CPE matchmatch criteria
cpe:2.3:a:siemens:sinec_network_management_system:*:*:*:*:*:*:*:*
1.0CPE matchmatch criteria
cpe:2.3:a:siemens:sinec_network_management_system:1.0:-:*:*:*:*:*:*
1.0CPE matchmatch criteria
cpe:2.3:a:siemens:sinec_network_management_system:1.0:sp1:*:*:*:*:*:*
< 14.0CPE matchmatch criteria
cpe:2.3:a:siemens:sinema_server:*:*:*:*:*:*:*:*
14.0CPE matchmatch criteria
cpe:2.3:a:siemens:sinema_server:14.0:-:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
20.62%
Probability of exploitation in next 30 days
EPSS Percentile
97.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.2062 is in the 96th percentile among its peer group of 17,823 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 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

cert-portal.siemens.com / productcert/pdf/ssa-156833.pdf
Vendor Advisory
us-cert.cisa.gov / ics/advisories/icsa-21-040-03
Third Party AdvisoryUS Government Resource
zerodayinitiative.com / advisories/ZDI-21-253
Third Party AdvisoryVDB Entry