338 matches found
libmempool
libmempool Preliminary note: we recommend you to use this as part of asatools but it can also be used standalone. libmempool is a python script and GDB analysis tool to aid in the analysis of mempool-related data structuress found inside various heaps on Cisco ASA devices. Normally this informati...
CVE-2026-123554
Zebra zebrad 6.4.0 before 7.0.0 performs quadratic work in the mempool coinbase-maturity check because Transaction::coinbasespendrestriction rebuilds the transaction's output list once per spent outpoint. Any connected peer can repeatedly send unsigned transactions with many transparent inputs an...
CVE-2026-123556
ZcashFoundation Zebra from 4.5.0 before 7.0.0 contains a protection mechanism failure that bans honest peers by scoring mempool lock-time rejections at the ban threshold. Attackers can broadcast transactions locked until the current height right after each block, causing lagging nodes to ban hone...
CVE-2026-123555
Zebra from 2.3.0 before 7.0.0 contains a denial of service vulnerability that allows unauthenticated peers to evade misbehavior scoring by sending transactions or blocks with invalid transparent scripts. Attackers can flood mempool with script-failing transactions or serve forged v5 block bodies...
CVE-2026-123556 Zebra 4.5.0 before 7.0.0 Honest Peer Ban via Mempool Lock-Time Scoring
ZcashFoundation Zebra from 4.5.0 before 7.0.0 contains a protection mechanism failure that bans honest peers by scoring mempool lock-time rejections at the ban threshold. Attackers can broadcast transactions locked until the current height right after each block, causing lagging nodes to ban hone...
EUVD-2026-119441
ZcashFoundation Zebra from 4.5.0 before 7.0.0 contains a protection mechanism failure that bans honest peers by scoring mempool lock-time rejections at the ban threshold. Attackers can broadcast transactions locked until the current height right after each block, causing lagging nodes to ban hone...
CVE-2026-123556 Zebra 4.5.0 before 7.0.0 Honest Peer Ban via Mempool Lock-Time Scoring
ZcashFoundation Zebra from 4.5.0 before 7.0.0 contains a protection mechanism failure that bans honest peers by scoring mempool lock-time rejections at the ban threshold. Attackers can broadcast transactions locked until the current height right after each block, causing lagging nodes to ban hone...
CVE-2026-123556
ZcashFoundation Zebra versions 4.5.0 before 7.0.0 are susceptible to a protection mechanism failure (CWE-693) involving mempool lock-time scoring. An attacker can broadcast transactions locked until the current height immediately following each block. This causes lagging nodes to reach a ban thre...
CVE-2026-123555 Zebra 2.3.0 before 7.0.0 Denial of Service via Unscored Script Verification Failures
Zebra from 2.3.0 before 7.0.0 contains a denial of service vulnerability that allows unauthenticated peers to evade misbehavior scoring by sending transactions or blocks with invalid transparent scripts. Attackers can flood mempool with script-failing transactions or serve forged v5 block bodies...
EUVD-2026-119440
Zebra from 2.3.0 before 7.0.0 contains a denial of service vulnerability that allows unauthenticated peers to evade misbehavior scoring by sending transactions or blocks with invalid transparent scripts. Attackers can flood mempool with script-failing transactions or serve forged v5 block bodies...
CVE-2026-123555
The Zebra software, versions 2.3.0 before 7.0.0 , is susceptible to a Denial of Service (DoS) vulnerability due to unscored script verification failures . Unauthenticated peers can exploit this by sending transactions or blocks containing invalid transparent scripts to evade misbehavior scoring. ...
CVE-2026-123555 Zebra 2.3.0 before 7.0.0 Denial of Service via Unscored Script Verification Failures
Zebra from 2.3.0 before 7.0.0 contains a denial of service vulnerability that allows unauthenticated peers to evade misbehavior scoring by sending transactions or blocks with invalid transparent scripts. Attackers can flood mempool with script-failing transactions or serve forged v5 block bodies...
CVE-2026-123554 Zebra zebrad 6.4.0 before 7.0.0 Denial of Service via Mempool Coinbase-Maturity Check
Zebra zebrad 6.4.0 before 7.0.0 performs quadratic work in the mempool coinbase-maturity check because Transaction::coinbasespendrestriction rebuilds the transaction's output list once per spent outpoint. Any connected peer can repeatedly send unsigned transactions with many transparent inputs an...
CVE-2026-123554 Zebra zebrad 6.4.0 before 7.0.0 Denial of Service via Mempool Coinbase-Maturity Check
Zebra zebrad 6.4.0 before 7.0.0 performs quadratic work in the mempool coinbase-maturity check because Transaction::coinbasespendrestriction rebuilds the transaction's output list once per spent outpoint. Any connected peer can repeatedly send unsigned transactions with many transparent inputs an...
CVE-2026-123554
Zebra zebrad versions 6.4.0 before 7.0.0 are vulnerable to a Denial of Service (DoS) attack due to inefficient algorithmic complexity in the mempool coinbase-maturity check. Specifically, the function Transaction::coinbase_spend_restriction() rebuilds a transaction's output list for every spent o...
EUVD-2026-119439
Zebra zebrad 6.4.0 before 7.0.0 performs quadratic work in the mempool coinbase-maturity check because Transaction::coinbasespendrestriction rebuilds the transaction's output list once per spent outpoint. Any connected peer can repeatedly send unsigned transactions with many transparent inputs an...
CVE-2026-123554 Zebra zebrad 6.4.0 before 7.0.0 Denial of Service via Mempool Coinbase-Maturity Check
Zebra zebrad 6.4.0 before 7.0.0 performs quadratic work in the mempool coinbase-maturity check because Transaction::coinbasespendrestriction rebuilds the transaction's output list once per spent outpoint. Any connected peer can repeatedly send unsigned transactions with many transparent inputs an...
PT-2026-139835
Zebra zebrad 6.4.0 before 7.0.0 performs quadratic work in the mempool coinbase-maturity check because Transaction::coinbase spend restriction rebuilds the transaction's output list once per spent outpoint. Any connected peer can repeatedly send unsigned transactions with many transparent inputs...
PT-2026-139836
Zebra from 2.3.0 before 7.0.0 contains a denial of service vulnerability that allows unauthenticated peers to evade misbehavior scoring by sending transactions or blocks with invalid transparent scripts. Attackers can flood mempool with script-failing transactions or serve forged v5 block bodies...
CVE-2026-123555: ZcashFoundation zebra: Zebra from 2.3.0 before 7.0.0 contains a denial of service vulnerability that allows unauthenticated peers to evade…
Zebra from 2.3.0 before 7.0.0 contains a denial of service vulnerability that allows unauthenticated peers to evade misbehavior scoring by sending transactions or blocks with invalid transparent scripts. Attackers can flood mempool with script-failing transactions or serve forged v5 block bodies...