CVE-2015-1854 [High] | Security Bypass in 389 Directory Server

CVE-2015-1854 is rated Moderate Risk (59.7/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.63%). EPSS rose +1.20% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2025-12-30	0.43%	1.63%	+1.20%
2	2025-03-30	0.69%	0.43%	-0.25%
3	2025-03-29	—	0.69%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2025-12-30

0.43%

1.63%

+1.20%

2025-03-30

0.69%

0.43%

-0.25%

2025-03-29

—

0.69%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
7.5	3.0	HIGH	`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:N) Doesn’t really leak secrets in a meaningful way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:N) Service keeps running; no real outage angle.	3.9	3.6	[email protected]
5.0	2.0	MEDIUM	`AV:N/AC:L/Au:N/C:N/I:P/A:N` Click to expand Access vector (AV:N) Can be exploited remotely over network reachability. Access complexity (AC:L) Exploitation conditions are straightforward and predictable. Authentication (AU:N) No authentication is required. Confidentiality impact (C:N) No confidentiality impact. Integrity impact (I:P) Partial integrity impact. Availability impact (A:N) No availability impact.	10.0	2.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

7.5

3.0

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Click to expand

Attack vector (AV:N): Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N): Doesn’t really leak secrets in a meaningful way.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N): Service keeps running; no real outage angle.

3.9

3.6

[email protected]

5.0

2.0

MEDIUM

AV:N/AC:L/Au:N/C:N/I:P/A:N Click to expand

Access vector (AV:N): Can be exploited remotely over network reachability.
Access complexity (AC:L): Exploitation conditions are straightforward and predictable.
Authentication (AU:N): No authentication is required.
Confidentiality impact (C:N): No confidentiality impact.
Integrity impact (I:P): Partial integrity impact.
Availability impact (A:N): No availability impact.

10.0

2.9

[email protected]

OS Trackers for CVE-2015-1854

vendor	priority	summary	link
`debian`	not yet assigned	CVE-2015-1854 not yet assigned priority: Debian including 1 source packages (389-ds-base), 4 status rows across 4 suites (bookworm, bullseye, sid, trixie): resolved 4.	https://security-tracker.debian.org/tracker/CVE-2015-1854
`redhat`	high	—	https://access.redhat.com/security/cve/CVE-2015-1854
`suse`	high	CVE-2015-1854 severity important: SUSE including 31 source package names (389-ds, 389-ds-1.3.4.14-1.2, …), 40 product×package rows across 13 product lines (SUSE Liberty Linux 7, SUSE Linux Enterprise High Performance Computing 15-LTSS, … (13 product lines)): Fixed 30, Known Not Affected 10.	https://www.suse.com/security/cve/CVE-2015-1854/
`ubuntu`	medium	CVE-2015-1854 medium priority: Ubuntu including 1 source packages (389-ds-base), 12 status rows across 12 suites (artful, bionic, lucid, precise, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): not-affected 5, ignored 4, DNE 2, released 1.	https://ubuntu.com/security/CVE-2015-1854

Affected software / configurations for CVE-2015-1854

Vendor	Product	Version	Raw CPE
fedoraproject	389_directory_server	<= 1.3.3.9	cpe:2.3:a:fedoraproject:389_directory_server::::::::
fedoraproject	fedora	22	cpe:2.3:o:fedoraproject:fedora:22:::::::*
debian	debian_linux	8.0	cpe:2.3:o:debian:debian_linux:8.0:::::::*

References for CVE-2015-1854

URL	Tags
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157069.html	Mailing List Third Party Advisory
http://www.securityfocus.com/bid/74392	Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2015:0895	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1209573	Issue Tracking Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00018.html	Mailing List Third Party Advisory

URL

CVE-2015-1854

Exploit prediction scoring system (EPSS) score for CVE-2015-1854

Common vulnerability scoring system (CVSS) metrics for CVE-2015-1854

Weakness enumeration for CVE-2015-1854

OS Trackers for CVE-2015-1854

Affected software / configurations for CVE-2015-1854

References for CVE-2015-1854