CVE-2020-14403
MEDIUM
5.4
CVSS Score
Published: June 17, 2020 at 03:12 PM UTC
Updated: June 17, 2026 at 02:54 AM UTC
15 products affected across 4 vendorsDebian LinuxUbuntu LinuxLibVNCServer
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Severity
MEDIUM5.4
Exploit prediction
EPSS 2%
Description
An issue was discovered in LibVNCServer before 0.9.13. libvncserver/hextile.c allows out-of-bounds access via encodings.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Debian Linux· Debiandrupal
95%v ≤ 0.9.12
3.0.0.0 ≤ v < 3.2.1.0
Affected range stops below 3.2.1.0, so it looks safe — our inference, not a vendor statement
siemens-simatic-itc1500 (same device)
3.0.0.0 ≤ v < 3.2.1.0
Affected range stops below 3.2.1.0, so it looks safe — our inference, not a vendor statement
siemens-simatic-itc1500-pro (same device)
3.0.0.0 ≤ v < 3.2.1.0
Affected range stops below 3.2.1.0, so it looks safe — our inference, not a vendor statement
siemens-simatic-itc1900 (same device)
3.0.0.0 ≤ v < 3.2.1.0
Affected range stops below 3.2.1.0, so it looks safe — our inference, not a vendor statement
siemens-simatic-itc1900-pro (same device)
3.0.0.0 ≤ v < 3.2.1.0
Affected range stops below 3.2.1.0, so it looks safe — our inference, not a vendor statement
siemens-simatic-itc2200 (same device)
3.0.0.0 ≤ v < 3.2.1.0
Affected range stops below 3.2.1.0, so it looks safe — our inference, not a vendor statement
siemens-simatic-itc2200-pro (same device)
Simatic Itc1500· Siemensdevice
80%All versions
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (7)
x_refsource_CONFIRMPatchThird Party Advisory
Source: [email protected]
https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdfx_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/LibVNC/libvncserver/commit/74e8a70f2c9a5248d6718ce443e07c7ed314dfffx_refsource_MISCRelease NotesThird Party Advisory
Source: [email protected]
https://github.com/LibVNC/libvncserver/compare/LibVNCServer-0.9.12...LibVNCServer-0.9.13Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2020/06/msg00035.htmlMailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2020/08/msg00045.htmlVendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
https://usn.ubuntu.com/4434-1/Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
https://usn.ubuntu.com/4573-1/CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- LOW
- Integrity
- NONE
- Availability
- LOW
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-787
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