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.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 24.9%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.1
- 6.8 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
- EPSS
- 24.90% probability · 98th percentile
- Public exploits
- 2 in Exploit-DB · first 11 January 2019
- CISA KEV
- Not listed
- Weakness
- CWE-838
- Affected
- openbsd/openssh · winscp/winscp · netapp/element software · netapp/ontap select deploy · netapp/storage automation store · siemens/scalance x204rna firmware · siemens/scalance x204rna eec firmware
- Source
- cve@mitre.org
EPSS moved from 24.9% on 14 October 2026 to 24.9% on 3 November 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
Public exploits (2)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdfPatch, Third Party Advisory
- https://cvsweb.openbsd.org/src/usr.bin/ssh/progressmeter.cRelease Notes
- https://cvsweb.openbsd.org/src/usr.bin/ssh/scp.cRelease Notes
- https://security.gentoo.org/glsa/201903-16Third Party Advisory
- https://security.netapp.com/advisory/ntap-20190213-0001/Third Party Advisory
- https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txtThird Party Advisory
- https://www.exploit-db.com/exploits/46193/Exploit, Third Party Advisory, VDB Entry
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdfPatch, Third Party Advisory
- https://cvsweb.openbsd.org/src/usr.bin/ssh/progressmeter.cRelease Notes
- https://cvsweb.openbsd.org/src/usr.bin/ssh/scp.cRelease Notes
- https://security.gentoo.org/glsa/201903-16Third Party Advisory
- https://security.netapp.com/advisory/ntap-20190213-0001/Third Party Advisory
- https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txtThird Party Advisory
- https://www.exploit-db.com/exploits/46193/Exploit, Third Party Advisory, VDB Entry
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://cert-portal.siemens.com/productcert/html/ssa-412672.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.