CVE-2015-2704: realmd allows remote attackers to inject arbitrary configurations in to sssd.conf and smb.conf via a newline c

Q: How do I fix CVE-2015-2704?

realmd: upgrade to newer than 15.2. Exact commands for each OS are on this page.

Q: Is CVE-2015-2704 being exploited?

CVE-2015-2704 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2015-2704 affect?

CVE-2015-2704 affects realmd. Severity is medium (CVSS 5.0). realmd allows remote attackers to inject arbitrary configurations in to sssd.conf and smb.conf via a newline character in an LDAP response.

Q: How urgent is CVE-2015-2704?

Priority 39/100. No elevated risk signals yet.

Routine

MEDIUM 5.0UPGRADE

CVE-2015-2704 is a medium-severity flaw (CVSS 5.0) affecting realmd. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

realmd allows remote attackers to inject arbitrary configurations in to sssd.conf and smb.conf via a newline character in an LDAP response.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	2.5% (top 15%)
CISA exploited list	No
Weakness	CWE-74
Published	2015-05-18
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: realmd project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2015-05-18 15:59 UTCPublished CVE record published
2026-06-17 00:24 UTCUpdated Record last modified

realmd project realmd UPGRADE

Affected: <= 15.2

Fixed in: newer than 15.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy realmd || rpm -q realmd || realmd --version

2. UPGRADE to newer than 15.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade realmd

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade realmd

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2015-2704?

realmd: upgrade to newer than 15.2. Exact commands for each OS are on this page.

Is CVE-2015-2704 being exploited?

CVE-2015-2704 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2015-2704 affect?

CVE-2015-2704 affects realmd. Severity is medium (CVSS 5.0). realmd allows remote attackers to inject arbitrary configurations in to sssd.conf and smb.conf via a newline character in an LDAP response.

How urgent is CVE-2015-2704?

Priority 39/100. No elevated risk signals yet.

References

← Back to latest CVEs