02 Records
FEED: ACQUIRING
01 RecordSTATE: PUBLISHED
02 Description
CNA: iscAmplification vulnerabilities via self-pointed glue records
03 Exploitation and scoring
SRC: CISA, FIRST, NVD, RED HAT- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.- EPSS probability
- 0.41% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Ranks above 33.7% of scored records. A rank, not a probability.
- NVD base score
- 5.3 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-07-24.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
SCHEMA: 5.2
- Published
- 2026-05-20 13:09Z3 MO AGO
- Last updated
- 2026-05-20 13:42Z3 MO AGO
- Reserved
- 2026-03-05
- Assigning CNA
- isc
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.3)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Weaknesses
- CWE-408Incorrect Behavior Order: Early AmplificationBase
- CWE-770Allocation of Resources Without Limits or ThrottlingBase
- Data version
- 5.2
- Document digest
- 1546dce46f44e1b8dc92e224e1be48f9c20979bd30546d339be35d6cf1eadfb4
05 Affected products
PAIRS: 1VendorProductVersionsPlatforms
ISCBIND 99.11.0 to 9.16.50, 9.18.0 to 9.18.48, 9.20.0 to 9.20.22, 9.21.0 to 9.21.21, 9.11.3-S1 to 9.16.50-S1, 9.18.11-S1 to 9.18.48-S1, 9.20.9-S1 to 9.20.22-S1— SRC: CNA
Upgrade to the patched release most closely related to your current version of BIND 9: 9.18.49, 9.20.23, 9.21.22, 9.18.49-S1, or 9.20.23-S1.