389-ds-base: 389-ds-base: pre-authentication stack buffer overflow in get_ruvelement_from_berval() via unbounded replica id parsing
CVSS Skor
7.5
EPSS İhtimal
%0.8
Risk Skoru
0.1
Yayın
2 ay önce
Resmî kaynaklarda yeterli kanıt bulunamadı. Bu sonuç “yama yok” anlamına gelmez.
Envanterimdeki Etkisi
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Zafiyet Açıklaması
DayBreach CVE AI Araştırması
CVE-2026-15722 için toplanan üretici, dağıtım, yama ve güvenlik kaynağı kayıtlarını karşılaştırıp kanıt bağlantılı bir açıklama hazırlayalım.
A stack buffer overflow flaw was found in 389 Directory Server (389-ds-base). The get_ruvelement_from_berval() function in repl5_ruv.c copies digit characters from a network-supplied RUV berval into a fixed 16-byte stack buffer without bounds checking. A remote unauthenticated attacker can crash the LDAP server by sending a crafted StartNSDS50ReplicationRequest extended operation containing a replica ID field with more than 16 digit characters. The overflow occurs during payload decoding, before any authorization check. Stack protectors limit impact to denial of service.
IMPACT — Etkilenen Ürünler ve Yazılımlar
Affected Products
The following products are affected by CVE-2026-15722 vulnerability. Even if our threat engine is aware of the exact versions of the products that are affected, the information is represented below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | Red Hat | Red Hat Directory Server 11.5 E4S for RHEL 8 | İncele |
| 2 | Red Hat | Red Hat Directory Server 11.7 E4S for RHEL 8 | İncele |
| 3 | Red Hat | Red Hat Directory Server 11.9 for RHEL 8 | İncele |
| 4 | Red Hat | Red Hat Directory Server 12.2 E4S for RHEL 9 | İncele |
| 5 | Red Hat | Red Hat Directory Server 12.4 E4S for RHEL 9 | İncele |
| 6 | Red Hat | Red Hat Enterprise Linux 10 | İncele |
| 7 | Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | İncele |
| 8 | Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | İncele |
| 9 | Red Hat | Red Hat Enterprise Linux 8 | İncele |
| 10 | Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | İncele |
| 11 | Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | İncele |
| 12 | Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | İncele |
| 13 | Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | İncele |
| 14 | Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | İncele |
| 15 | Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | İncele |
| 16 | Red Hat | Red Hat Enterprise Linux 9 | İncele |
| 17 | Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | İncele |
| 18 | Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions | İncele |
| 19 | Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | İncele |
| 20 | Red Hat | Red Hat Directory Server 12 | İncele |
| 21 | Red Hat | Red Hat Directory Server 13 | İncele |
| 22 | Red Hat | Red Hat Enterprise Linux 6 | İncele |
| 23 | redhat | directory server | İncele |
| 24 | redhat | directory server | İncele |
| 25 | redhat | 389 directory server | İncele |
| 26 | redhat | enterprise linux | İncele |
| 27 | redhat | enterprise linux | İncele |
| 28 | redhat | enterprise linux | İncele |
| 29 | redhat | enterprise linux | İncele |
RED HAT CSAF/VEX — Ürün Etki Kontrolü
SCORING — CVSS Çoklu Kaynak Skoru
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from various sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 7.5 | CVSS V31 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD |
| 7.5 | CVSS V3_1 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CVE CNA |
Yama ve İyileştirme Rehberi (Solution)
Solution & Remediation Advisory
İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.
Public exploit ve aktif sömürü durumu
Doğrulanmış exploit istihbaratı
Bu CVE için henüz doğrulanmış public PoC, exploit repository’si veya Metasploit modülü bulunamadı.
Zafiyet Dağılımı ve Saldırı Kalıpları (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-15722 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-15722 weaknesses.
Saldırı Vektörü ve Erişilebilirlik Karakteristiği
Resmi Kaynaklar ve Danışma Bültenleri
İlgili Benzer Açıklar
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curl -H "x-api-key: $DAYBREACH_API_KEY" \ "https://api.daybreach.dev/api/v1/intel/cves/CVE-2026-15722"