How severe is CVE-2019-6110?

CVE-2019-6110 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2019-6110 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 21% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-6110?

CVE-2019-6110 primarily affects Openbsd Openssh. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-6110?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-6110 published?

CVE-2019-6110 was published on 2019-01-31 and last updated on 2026-06-17.

CVE-2019-6110

CVE-2019-6110 is a medium-severity vulnerability in Openbsd Openssh with a CVSS 3.x base score of 6.8. Its EPSS exploit-prediction score of 21% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-838.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
CVSS v2: 4.0
EPSS exploit prediction: 21% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-838
Affected product: Openbsd Openssh
Published: 2019-01-31
Last modified: 2026-06-17

Description

In OpenSSH 7.9, due to accepting and displaying arbitrary stderr output from the server, a malicious server (or Man-in-The-Middle attacker) can manipulate the client output, for example to use ANSI control codes to hide additional files being transferred.

Frequently asked questions

What is CVE-2019-6110?: In OpenSSH 7.9, due to accepting and displaying arbitrary stderr output from the server, a malicious server (or Man-in-The-Middle attacker) can manipulate the client output, for example to use ANSI control codes to hide additional files being transferred.
How severe is CVE-2019-6110?: CVE-2019-6110 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2019-6110 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 21% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-6110?: CVE-2019-6110 primarily affects Openbsd Openssh. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-6110?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-6110 published?: CVE-2019-6110 was published on 2019-01-31 and last updated on 2026-06-17.

References

Affected products (7)

cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*
cpe:2.3:a:winscp:winscp:*:*:*:*:*:*:*:*
cpe:2.3:a:netapp:element_software:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:ontap_select_deploy:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:storage_automation_store:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_x204rna_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_x204rna_eec_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Openbsd Openssh

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All CVEs affecting Openbsd Openssh →

Other CWE-838 vulnerabilities

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CVE-2018-9862 — High (CVSS 7.8): util.c in runV 1.0.0 for Docker mishandles a numeric username, which allows attackers to obtain root access by…
CVE-2024-11702 — High (CVSS 7.5): Copying sensitive information from Private Browsing tabs on Android, such as passwords, may have inadvertently stored…
CVE-2023-6512 — Medium (CVSS 6.5): Inappropriate implementation in Web Browser UI in Google Chrome prior to 120.0.6099.62 allowed a remote attacker to…
CVE-2023-5770 — Medium (CVSS 5.3): Proofpoint Enterprise Protection contains a vulnerability in the email delivery agent that allows an unauthenticated…

Browse all CWE-838 vulnerabilities →

Threat intelligence

Threat-intel indicators referencing this CVE:

14.18.122.98 (ipv4-addr)
124.223.78.215 (ipv4-addr)
120.48.123.76 (ipv4-addr)
60.12.249.51 (ipv4-addr)
122.114.69.235 (ipv4-addr)
113.0.152.164 (ipv4-addr)
45.84.120.3 (ipv4-addr)
92.47.46.174 (ipv4-addr)