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CVE-2018-4849

24
FAUCET Score

CVE-2018-4849 is an improper certificate validation vulnerability affecting Siemens Siveillance VMS Video for Android and iOS versions prior to V12.1a (2018 R1). An attacker in a privileged network position could intercept encrypted communication between the app and a server, read data, and write data, compromising confidentiality and integrity. This high-severity vulnerability (CVSS 7.4) requires an attacker to generate a certificate with an identical checksum to a trusted one, but no user interaction is needed. There is no known public exploitation, exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 12.1aCPE matchmatch criteria
cpe:2.3:a:siemens:siveillance_vms_video:*:*:*:*:*:android:*:*
< 12.1aCPE matchmatch criteria
cpe:2.3:a:siemens:siveillance_vms_video:*:*:*:*:*:iphone_os:*:*

CVSS Data

CVSS version used by this source: 3.0

7.4HIGH

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
5.2
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.75%
Probability of exploitation in next 30 days
EPSS Percentile
51.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0075 is in the 20th percentile among its peer group of 8,920 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 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-468514.pdf
Vendor Advisory
securityfocus.com / bid/104105
Third Party AdvisoryVDB Entry